Direct flights from Seattle to Dulles

Did you mean Flights from Dulles to Seattle?

Seattle

United States

SEA

Seattle Tacoma International Airport

Dulles

United States

IAD

Washington Dulles International Airport

Route: Nonstop service available
Distance: 2,300 miles
Marketing airlines: 21 airlines
Aircraft: 9 aircraft types
Dates: Nov 2, 2026 – Oct 31, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Lowest price in this limited sample: 12,500 points + $5.00 for SEA → IAD, Economy, on 2026-12-10, booked with Alaska Atmos Rewards. This is an observed fare, not a guaranteed price or the lowest price across all dates and programs.

Departure window: 2026-11-12 – 2026-12-11.

SEA → IADEconomy
AS737
12,500 points+ $5.00
Departure
2026-12-10
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-11-11 03:03
SEA → IADEconomy
AS737
15,000 points+ $5.00
Departure
2026-11-26
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-11-11 22:00
SEA → IADEconomy
UA672
15,000 points+ $5.00
Departure
2026-11-26
Seats seen
1
Book with
United MileagePlus
Observed (UTC)
2026-11-12 10:06
SEA → IADEconomy
UA672
17,500 points+ $33.00
Departure
2026-11-26
Seats seen
9
Book with
Aeroplan
Observed (UTC)
2026-11-11 22:00
SEA → IADEconomy
AS367
17,500 points+ $5.00
Departure
2026-12-10
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-11-11 03:03
SEA → IADEconomy
AS367
17,500 points+ $5.00
Departure
2026-12-11
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-11-12 09:19
SEA → IADEconomy
AS737
17,500 points+ $5.00
Departure
2026-12-11
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-11-12 09:19
SEA → IADEconomy
UA672
19,000 points+ $9.00
Departure
2026-11-18
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-12 04:54
SEA → IADEconomy
UA1348
19,000 points+ $9.00
Departure
2026-12-02
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-10 15:58
SEA → IADEconomy
UA1348
19,000 points+ $9.00
Departure
2026-12-03
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-10 21:39
SEA → IADEconomy
UA1348
19,000 points+ $9.00
Departure
2026-12-04
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-10 17:22
SEA → IADEconomy
UA1348
19,000 points+ $9.00
Departure
2026-12-09
Seats seen
9
Book with
Virgin Australia
Observed (UTC)
2026-11-10 17:08

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Transfer partners in our directory: Bilt Rewards, Marriott Bonvoy, IHG Rewards, Choice Privileges. Check current eligibility and terms before transferring.
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Transfer partners in our directory: Wyndham Rewards, Chase Ultimate Rewards, Bilt Rewards, Marriott Bonvoy, Accor Live Limitless, IHG Rewards, Choice Privileges. Check current eligibility and terms before transferring.
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Seattle to Dulles route overview

Seattle Tacoma International Airport (SEA) serves Seattle; Washington Dulles International Airport (IAD) serves Dulles.

The airports are 2,300 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from SEA to IAD.

Marketing airlines listed in the current schedule, including codeshare sellers, are American Airlines (AA), Alaska Airlines (AS), Avianca (AV), Finnair (AY), Alitalia (AZ), Copa Airlines (CM), Cathay Pacific (CX), Delta Air Lines (DL), Ethiopian Airlines (ET), Iberia (IB), Japan Airlines (JL), Starlux Airlines (JX), Korean Air (KE), Lufthansa (LH), China Eastern Airlines (MU), Austrian Airlines (OS), Philippine Airlines (PR), Qatar Airways (QR), Brussels Airlines (SN), United Airlines (UA) and Virgin Atlantic (VS). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Nov 2, 2026 – Oct 31, 2027.

Marketing airlines on the Seattle to Dulles route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

Avianca (AV)Codeshare only
Finnair (AY)Codeshare only
Alitalia (AZ)Codeshare only
Copa Airlines (CM)Codeshare only
Cathay Pacific (CX)Codeshare only
Ethiopian Airlines (ET)Codeshare only
Iberia (IB)Codeshare only
Japan Airlines (JL)Codeshare only
Starlux Airlines (JX)Codeshare only
Korean Air (KE)Codeshare only
Lufthansa (LH)Codeshare only
China Eastern Airlines (MU)Codeshare only
Austrian Airlines (OS)Codeshare only
Philippine Airlines (PR)Codeshare only
Brussels Airlines (SN)Codeshare only
Virgin Atlantic (VS)Codeshare only

Airline alliance affiliations represented: Oneworld, SkyTeam, Star Alliance

Aircraft flying from SEA to IAD

Frequently asked questions

Which airports serve the Seattle to Dulles route?

Seattle Tacoma International Airport (SEA) is the origin airport and Washington Dulles International Airport (IAD) is the destination airport.

How far is Dulles from Seattle?

SEA and IAD are approximately 2,300 miles apart by great-circle distance.

Are there direct flights from SEA to IAD?

Yes. Roame's current schedule feed shows nonstop service from SEA to IAD.

Which airlines market flights from SEA to IAD?

Which aircraft fly from SEA to IAD?

Aircraft listed in the current schedule include Airbus A220-300 (223), Airbus A321neo (32Q), 737, Boeing 737-800 (738), Boeing 737-900 / Boeing 737-900ER (739), Boeing 737-800 Winglets (73H), Boeing 737-900 Winglets (73J), Boeing 737 MAX 8 (7M8) and JET.