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Flights from Seattle to Dulles – Direct & connecting routes

Non-stop airlines Connecting flights Show map Price search

SEA to IAD flights and routes map SEA to IAD – All flight route options from Seattle Tacoma International, Washington, USA to Washington Dulles International, Virginia, USA. These flights are operated by 8 different airlines. Fly non-stop or choose from 23 different connecting flights. The shortest flight time is 4 hours and 57 minutes. See the full flight schedule and time table, including departure times, airlines and stopover details to find the best option for you.

From
To
USA SEA Seattle Tacoma Seattle, WA, USA
USA IAD Washington Dulles , VA, USA
SEA
Seattle Tacoma
USASeattle, WA, USA
Washington Dulles
USADulles, VA, USA
IAD
3 direct routes found »
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42 routes with 1 stop found »
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Non-stop route options:

Duration

United Airlines
Non-stop with United Airlines. 3-4 flights per day.

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4h 57m

United Airlines
Non-stop with United Airlines.
4h 57m
3-4 flights per day.
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Delta Air Lines
Non-stop with Delta Air Lines. 1 flight per day.

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5h 00m

Delta Air Lines
Non-stop with Delta Air Lines.
5h 00m
1 flight per day.
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Alaska Airlines
Non-stop with Alaska Airlines. 2-3 flights per day.

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5h 00m

Alaska Airlines
Non-stop with Alaska Airlines.
5h 00m
2-3 flights per day.
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1 stop route options with the same airline:

Duration

Via Salt Lake City SLC
1 stop with Delta Air Lines. 1-3 flights per day.

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7h 13m

Via Salt Lake City SLC
1 stop with Delta Air Lines.
7h 13m
1-3 flights per day.
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Via Denver DEN
1 stop with Southwest Airlines. 0-2 flights per day.

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7h 25m

Via Denver DEN
1 stop with Southwest Airlines.
7h 25m
0-2 flights per day.
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Via Denver DEN
1 stop with United Airlines. 5-12 flights per day.

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7h 32m

Via Denver DEN
1 stop with United Airlines.
7h 32m
5-12 flights per day.
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Via Charlotte CLT
1 stop with American Airlines. 4 flights per day.

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7h 50m

Via Charlotte CLT
1 stop with American Airlines.
7h 50m
4 flights per day.
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Via Dallas DFW
1 stop with American Airlines. 3-4 flights per day.

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8h 12m

Via Dallas DFW
1 stop with American Airlines.
8h 12m
3-4 flights per day.
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Via Detroit DTW
1 stop with Delta Air Lines. 3-4 flights per day.

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8h 15m

Via Detroit DTW
1 stop with Delta Air Lines.
8h 15m
3-4 flights per day.
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Via Minneapolis MSP
1 stop with Sun Country Airlines. 0-1 flights per day.
Wed & Sun

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8h 21m

Wed & Sun
Via Minneapolis MSP
1 stop with Sun Country Airlines.
8h 21m
0-1 flights per day.
Wed & Sun
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Via Atlanta ATL
1 stop with Delta Air Lines. 5-7 flights per day.

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8h 22m

Via Atlanta ATL
1 stop with Delta Air Lines.
8h 22m
5-7 flights per day.
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Via Minneapolis MSP
1 stop with Delta Air Lines. 2-3 flights per day.

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8h 25m

Via Minneapolis MSP
1 stop with Delta Air Lines.
8h 25m
2-3 flights per day.
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Via Columbus CMH
1 stop with United Airlines.
Begins in 1/8

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8h 35m

Begins in 1/8
Via Columbus CMH
1 stop with United Airlines.
8h 35m
Begins in 1/8
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Via Chicago ORD
1 stop with United Airlines. 6-8 flights per day.

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8h 35m

Via Chicago ORD
1 stop with United Airlines.
8h 35m
6-8 flights per day.
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Via New York JFK
1 stop with Delta Air Lines. 2 flights per day.

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9h 30m

Via New York JFK
1 stop with Delta Air Lines.
9h 30m
2 flights per day.
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Via Las Vegas LAS
1 stop with Southwest Airlines.
Begins in 5/10

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9h 50m

Begins in 5/10
Via Las Vegas LAS
1 stop with Southwest Airlines.
9h 50m
Begins in 5/10
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Via Raleigh/Durham RDU
1 stop with United Airlines. 0-2 flights per day.

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11h 03m

Via Raleigh/Durham RDU
1 stop with United Airlines.
11h 03m
0-2 flights per day.
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Via Philadelphia PHL
1 stop with United Airlines. 0-2 flights per day.

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11h 09m

Via Philadelphia PHL
1 stop with United Airlines.
11h 09m
0-2 flights per day.
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Via New York EWR
1 stop with United Airlines. 2-5 flights per day.

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11h 35m

Via New York EWR
1 stop with United Airlines.
11h 35m
2-5 flights per day.
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Via Atlanta ATL
1 stop with United Airlines.
Begins in 26/10

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12h 03m

Begins in 26/10
Via Atlanta ATL
1 stop with United Airlines.
12h 03m
Begins in 26/10
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Via Dallas DFW
1 stop with United Airlines. 0-1 flights per day.

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12h 58m

Via Dallas DFW
1 stop with United Airlines.
12h 58m
0-1 flights per day.
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Via Nashville BNA
1 stop with United Airlines. 0-1 flights per day.

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13h 13m

Via Nashville BNA
1 stop with United Airlines.
13h 13m
0-1 flights per day.
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1 stop route options with codeshare or different airlines:

Duration

Via Detroit DTW With American Airlines & United Airlines 0-1 flights per day.
CODESHARE

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6h 54m

Via Detroit DTW
6h 54m
With American Airlines & United Airlines 0-1 flights per day.
CODESHARE
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Via Minneapolis MSP With Alaska Airlines & Delta Air Lines 1-2 flights per day.

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6h 59m

Via Minneapolis MSP
6h 59m
With Alaska Airlines & Delta Air Lines 1-2 flights per day.
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Via Pittsburgh PIT With Alaska Airlines & United Airlines

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7h 08m

Via Pittsburgh PIT
7h 08m
With Alaska Airlines & United Airlines
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Via Indianapolis IND With American Airlines & United Airlines 2 flights per day.
CODESHARE

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7h 32m

Via Indianapolis IND
7h 32m
With American Airlines & United Airlines 2 flights per day.
CODESHARE
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Via Cleveland CLE With Alaska Airlines & United Airlines 2 flights per day.

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7h 44m

Via Cleveland CLE
7h 44m
With Alaska Airlines & United Airlines 2 flights per day.
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Via Portland PDX With Alaska Airlines & United Airlines 1-2 flights per day.

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7h 55m

Via Portland PDX
7h 55m
With Alaska Airlines & United Airlines 1-2 flights per day.
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Via Chicago ORD With American Airlines & United Airlines 3-4 flights per day.

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8h 00m

Via Chicago ORD
8h 00m
With American Airlines & United Airlines 3-4 flights per day.
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Via Denver DEN With Alaska Airlines & United Airlines 3-4 flights per day.

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8h 00m

Via Denver DEN
8h 00m
With Alaska Airlines & United Airlines 3-4 flights per day.
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Via Cincinnati CVG With American Airlines & United Airlines 0-1 flights per day.
CODESHARE

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8h 08m

Via Cincinnati CVG
8h 08m
With American Airlines & United Airlines 0-1 flights per day.
CODESHARE
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Via Columbus CMH With American Airlines & United Airlines 2 flights per day.
CODESHARE

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8h 10m

Via Columbus CMH
8h 10m
With American Airlines & United Airlines 2 flights per day.
CODESHARE
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Via Dallas DFW With American Airlines & United Airlines 2 flights per day.

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8h 16m

Via Dallas DFW
8h 16m
With American Airlines & United Airlines 2 flights per day.
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Via Nashville BNA With Alaska Airlines & United Airlines 2 flights per day.

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8h 18m

Via Nashville BNA
8h 18m
With Alaska Airlines & United Airlines 2 flights per day.
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Via New York JFK With Alaska Airlines & Delta Air Lines 0-1 flights per day.

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8h 46m

Via New York JFK
8h 46m
With Alaska Airlines & Delta Air Lines 0-1 flights per day.
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Via Atlanta ATL With Alaska Airlines & Delta Air Lines 0-1 flights per day.

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8h 51m

Via Atlanta ATL
8h 51m
With Alaska Airlines & Delta Air Lines 0-1 flights per day.
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Via Charlotte CLT With American Airlines & United Airlines 2 flights per day.

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9h 00m

Via Charlotte CLT
9h 00m
With American Airlines & United Airlines 2 flights per day.
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Via Salt Lake City SLC With Alaska Airlines & Delta Air Lines 0-1 flights per day.
Begins in 11/8

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9h 09m

Begins in 11/8
Via Salt Lake City SLC
9h 09m
With Alaska Airlines & Delta Air Lines 0-1 flights per day.
Begins in 11/8
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Via Philadelphia PHL With American Airlines & United Airlines
Begins in 6/10

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9h 09m

Begins in 6/10
Via Philadelphia PHL
9h 09m
With American Airlines & United Airlines
Begins in 6/10
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Via Raleigh/Durham RDU With Alaska Airlines & United Airlines

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9h 12m

Via Raleigh/Durham RDU
9h 12m
With Alaska Airlines & United Airlines
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Via New York EWR With American Airlines & United Airlines 0-1 flights per day.
CODESHARE

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9h 18m

Via New York EWR
9h 18m
With American Airlines & United Airlines 0-1 flights per day.
CODESHARE
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Via Charleston CHS With Alaska Airlines & United Airlines 0-1 flights per day.

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9h 24m

Via Charleston CHS
9h 24m
With Alaska Airlines & United Airlines 0-1 flights per day.
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Via Albuquerque ABQ With Alaska Airlines & United Airlines
Begins in 4/10

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9h 44m

Begins in 4/10
Via Albuquerque ABQ
9h 44m
With Alaska Airlines & United Airlines
Begins in 4/10
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Via Boston BOS With American Airlines & United Airlines 0-1 flights per day.
CODESHARE

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9h 49m

Via Boston BOS
9h 49m
With American Airlines & United Airlines 0-1 flights per day.
CODESHARE
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Via Las Vegas LAS With Alaska Airlines & United Airlines 3-4 flights per day.

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9h 56m

Via Las Vegas LAS
9h 56m
With Alaska Airlines & United Airlines 3-4 flights per day.
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Seattle to Dulles flights

There are over 26 airlines and as many as 733 flights every week to this destination. You can fly non-stop to Dulles (IAD) from Seattle (SEA) with Alaska Airlines, United Airlines or Delta Air Lines but if a stopover option suits you better you can choose to fly via Detroit, Minneapolis or any other of the 23 alternatives with connectiing airports.

Tip! You might want to consider arriving at Ronald Reagan Washington National (DCA) instead.

Seattle to Dulles with Alaska Airlines

You can fly non-stop every weekday with flights departing from 8:00 am to 11:00 pm. Alaska Airlines is a member of the air alliance OneWorld.

With Southwest Airlines

If you choose to fly with Southwest Airlines from Seattle to Dulles you can make a transit either via Denver or via Las Vegas. The route via Denver is 2 hours and 25 minutes faster.

Distance & flight times: Seattle Airport to Dulles

The shortest flight time between SEA and IAD is 5 hours.

ViaTotal flight timeLayover timeDistance
Direct5h 0m-2313 miles (3722 km)
DTW Detroit6h 54m55m2317 miles (3728 km)
MSP Minneapolis6h 59m1h 3m2313 miles (3722 km)
PIT Pittsburgh7h 8m1h 28m2314 miles (3723 km)
IND Indianapolis7h 32m2h 20m2349 miles (3780 km)
CLE Cleveland7h 44m2h 6m2316 miles (3726 km)
CLT Charlotte7h 50m2h 34m2610 miles (4199 km)
PDX Portland7h 55m1h 58m2464 miles (3965 km)
ORD Chicago8h 0m2h 22m2315 miles (3725 km)
DEN Denver8h 0m2h 36m2485 miles (3998 km)
CVG Cincinnati8h 8m2h 5m2359 miles (3796 km)
CMH Columbus8h 10m2h 30m2322 miles (3736 km)
DFW Dallas8h 12m40m2843 miles (4574 km)
BNA Nashville8h 18m2h 50m2528 miles (4068 km)
JFK New York8h 46m1h 30m2656 miles (4274 km)
ATL Atlanta8h 51m1h 47m2727 miles (4388 km)
SLC Salt Lake City9h 9m2h 51m2524 miles (4061 km)
PHL Philadelphia9h 9m2h 54m2519 miles (4053 km)
RDU Raleigh/Durham9h 12m2h 40m2587 miles (4162 km)
EWR New York9h 18m2h 31m2620 miles (4216 km)
CHS Charleston9h 24m2h 38m2868 miles (4615 km)
ABQ Albuquerque9h 44m2h 56m2818 miles (4534 km)
BOS Boston9h 49m2h 40m2916 miles (4692 km)
LAS Las Vegas9h 56m1h 37m2943 miles (4735 km)
The flight times and layover times in the table above are approximate and may vary depending on flight number, aircraft, airline, weather, and time of day.SEA-IAD flight routesSeattle to Dulles flight routes illustrated on a map.
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Seattle - Dulles route map and flight paths
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You can fly non-stop from Seattle (SEA) to Dulles (IAD) with Alaska Airlines, United Airlines or Delta Air Lines. The flight takes approximately 5 hours. If you travel with a connecting flight instead, for example via Detroit, the total flight time will be 6 hours and 54 minutes.

If you're interested in direct flights, Alaska Airlines, United Airlines or Delta Air Lines is available. For flights with stopovers, American Airlines, United Airlines, Alaska Airlines or Delta Air Lines is also an option.

The flight time between Seattle Tacoma (SEA) and Washington Dulles International (IAD) is approximately 5 hours. The distance between the two airports is 2610 miles (or 4199 kilometers).

Yes, you can fly non-stop to IAD from SEA with Alaska Airlines, United Airlines or Delta Air Lines.

A codeshare agreement means that cooperating airlines are able to sell seats on each other’s flights. This means that you are able to travel to more destinations than your airline of choice normally offers. Codeshare flights are also beneficial because of the seamless transits you can get with connecting flights from the same airline. The downside of choosing a codeshare flight can be that you in some cases can’t upgrade codeshare flights or use elite benefits.

A connecting or transit flight means that you reach your final destination through two or more flights – in other words a non-direct flight. You will change to a new aircraft after your first flight, this may include moving to another terminal at the airport aswell. The time required to transfer passengers and luggage between flights is called Minimum Connecting Time (MCT) and are always taken into account here on Flightroutes.com.

If you bought your whole flight on a single ticket, the airline will book you on the next available connecting flight.

With connecting flights, checked in luggage is most commonly forwarded to your final destination when buying a single ticket for both flights.

If you miss your connecting flight due to circumstances outside your control such as your first flight being delayed, you should turn to your airline who will provide you with a seat on the next available flight. This is usually done free of charge, and only applies if you purchased your trip as one ticket. If the next connecting flight is the following day, the airline usually provides accommodation and meals.
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