Cheap flights from Seattle to Washington, D.C. from £109

Cheap flights from Seattle to Washington, D.C. from £109

Trusted by millions

Kiwi.com Guarantee for stress-free travel

One search, all the best deals

Explore flight deals to Washington, D.C.

1 stop
Tue, Jul 21
Seattle SEAWashington, D.C. IAD
£109
Search
Direct
Wed, Jul 22
Seattle SEAWashington, D.C. IAD
£161
Search
Direct
Thu, Jul 23
Seattle SEAWashington, D.C. IAD
£170
Search
Direct
Wed, Jul 22
Seattle SEAWashington, D.C. BWI
£175
Search
Direct
Tue, Jul 21
Seattle SEAWashington, D.C. IAD
£183
Search
Direct
Wed, Jul 22
Seattle SEAWashington, D.C. IAD
£183
Search

Not happy with the results? Try some of our useful filters

Search by stops

Search by carrier

Search by price

Search by departure date

Direct
Mon, Jul 20 – Thu, Jul 23
Seattle SEAWashington, D.C. IAD
£234
Search
Direct
Mon, Jul 20 – Thu, Jul 23
Seattle SEAWashington, D.C. IAD
£234
Search
Direct
Mon, Jul 20 – Thu, Jul 23
Seattle SEAWashington, D.C. IAD
£234
Search
Direct
Mon, Jul 20 – Thu, Jul 23
Seattle SEAWashington, D.C. IAD
£234
Search
Direct
Mon, Jul 20 – Thu, Jul 23
Seattle SEAWashington, D.C. IAD
£234
Search
Direct
Sun, Jul 19 – Wed, Jul 22
Seattle SEAWashington, D.C. DCA
£245
Search

Not happy with the results? Try some of our useful filters

Search by stops

Search by carrier

Search by price

Search by departure date

How much do flights to Washington, D.C. cost?

Cheapest one-way trip

£109

Cheapest nonstop round-trip

£204

Cheapest round-trip

£234

Average round-trip

£354

Includes rare itinerary

Travel hack

Getting from Washington, D.C. airports to the city center

Fastest options: Metro from DCA. Best value: Metro and bus services from all airports.

Washington, D.C. is served by three major airports, each offering various airport transfers to city center destinations. Ronald Reagan Washington National Airport (DCA) is the closest, located just 6 km south of downtown across the Potomac River. Washington Dulles International Airport (IAD) lies 42 km west of the city center in Virginia. Baltimore/Washington International Thurgood Marshall Airport (BWI) is 50 km northeast in Maryland. Transport options include Metro rail, commuter trains, express buses, taxis, ride-hailing services, and private transfers. Journey times and costs vary depending on the airport, time of day, and traffic conditions.

How to get from Ronald Reagan Washington National Airport (DCA) to Washington, D.C.?

Transport Option

Typical Time

Typical Cost

Frequency

Best For

15-20 min

$2 – $6; varies by destination and time of day

every 8–12 min (traffic dependent)

fastest and most affordable

15-30 min

$15 – $25; metered; varies by traffic

on-demand 24/7 (traffic dependent)

door-to-door convenience

How to get from Washington Dulles International Airport (IAD) to Washington, D.C.?

Transport Option

Typical Time

Typical Cost

Frequency

Best For

45-60 min

$6; flat fare to downtown

every 8–15 min (traffic dependent)

budget travelers

20-30 min

$5; to Wiehle-Reston East Metro

every 20 min (traffic dependent)

connecting to Metro

45-75 min

$65 – $85; metered; varies by traffic

on-demand 24/7 (traffic dependent)

groups with luggage

How to get from Baltimore/Washington International Thurgood Marshall Airport (BWI) to Washington, D.C.?

Transport Option

Typical Time

Typical Cost

Frequency

Best For

35-45 min

$8; one-way fare

hourly weekdays (traffic dependent)

commuters to Union Station

30-40 min

$15 – $50; varies by train type and booking time

multiple daily (traffic dependent)

comfort and speed

50-90 min

$90 – $110; metered; varies by traffic

on-demand 24/7 (traffic dependent)

late night arrivals

Notes:

  • Prices in USD; table created in 2025 and subject to change.
  • Metro fares vary by distance and time of day; use SmarTrip card for best rates.
  • MARC trains operate primarily on weekdays with limited weekend service.
  • Taxi and ride-hailing prices vary with demand and traffic conditions.
  • We recommend checking official transport websites for your travel planning.

Updated: December 2025

Key info about flying to Washington, D.C.

Depart from
Seattle–Tacoma International
Arrive to
Washington Dulles International
Average flights per week
400
Flight distance
3705 km
Worth visiting
Lincoln Memorial - National Mall

Weekly direct flights

Discover the top airlines offering direct flights from Seattle to Washington, D.C. in the next month. You’ll find the number of daily direct flights per airline in the chart.

AirlineMon 06.07Tue 07.07Wed 08.07Thu 09.07Fri 10.07Sat 11.07Sun 12.07
Alaska Airlines
---277521
United Airlines
------233------
Hawaiian Airlines
---------------------
American Airlines
---------------------
Weekly flights: 32 totalDaily flights: 4.57 averageMost flights: Wednesday 7 flights
AirlineMon 13.07Tue 14.07Wed 15.07Thu 16.07Fri 17.07Sat 18.07Sun 19.07
Alaska Airlines
4767675
United Airlines
32311------
Hawaiian Airlines
---------------------
American Airlines
---------------------
Weekly flights: 52 totalDaily flights: 7.43 averageMost flights: Tuesday 7 flights
AirlineMon 20.07Tue 21.07Wed 22.07Thu 23.07Fri 24.07Sat 25.07Sun 26.07
Alaska Airlines
7777777
United Airlines
1233322
Hawaiian Airlines
---------------------
American Airlines
---------------------
Weekly flights: 65 totalDaily flights: 9.29 averageMost flights: Monday 7 flights
AirlineMon 27.07Tue 28.07Wed 29.07Thu 30.07Fri 31.07Sat 01.08Sun 02.08
Alaska Airlines
7777767
United Airlines
3333323
Hawaiian Airlines
---------------------
American Airlines
---------------1---
Weekly flights: 69 totalDaily flights: 9.86 averageMost flights: Monday 7 flights

Check-in for a flight from Seattle to Washington, D.C.

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUANo
Frontier AirlinesFFTF9No
JetBlue AirwaysJBUB6No
Alaska AirlinesASAASNo
Air Excursions X4No

Online check-in is not available for these airlines.

Weather in Washington, D.C.

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January5°C-2°C
February7°C0°C
March13°C3°C
April19°C8°C
May23°C13°C
June29°C18°C
July32°C21°C
August30°C20°C
September26°C17°C
October20°C11°C
November13°C5°C
December8°C1°C
Hottest Month
32°C
July
Coldest month
-2°C
January
Sunny days
266
days per year
Snow days
8
days per year

14 day forecast

Sunday
5 Jul
66%
38°C22°C
12 Jul
28°C21°C
Monday
6 Jul
80%
30°C22°C
13 Jul
57%
27°C17°C
Tuesday
7 Jul
78%
31°C21°C
14 Jul
31°C18°C
Wednesday
8 Jul
90%
25°C21°C
15 Jul
57%
33°C19°C
Thursday
9 Jul
34°C19°C
16 Jul
34°C20°C
Friday
10 Jul
57%
34°C22°C
17 Jul
17%
33°C23°C
Saturday
11 Jul
34°C22°C
18 Jul
36%
35°C21°C

Washington, D.C. travel tips

Step into Georgetown, Washington's most respectable neighbourhood

The Georgetown area was created in the middle of the 18th century and is considered the oldest place in the city. It is a prestigious and expensive area. The streets of Georgetown are full of expensive shops and old mansions. Many young people can be found on the streets, as the university with the same name is located here.

If you want to save money, rent accommodation in cities nearby, not in Washington DC

If you are travelling to Washington, one of the budget accommodation options is to live in the nearby town of Arlington and get to downtown Washington in 15-20 minutes by metro. Housing prices there are almost twice as low as in Washington.

It is customary in Washington to drink iced black tea without sugar

There are not many good coffee shops in Washington DC because the locals prefer tea as a tribute to the English past. However, tea is often drunk here cold, with ice, lemon, or milk, and without sugar.

Travelers usually depart from Seattle–Tacoma International, Boeing Field, or Kenmore Air Harbor Seaplane Base when they travel from Seattle to Washington, D.C.. Book your trip to arrive at Washington Dulles International, Baltimore–Washington International, or Ronald Reagan Washington National. The distance between Seattle and Washington, D.C. is 3705 km. The most popular airlines for this route are United Airlines, Frontier Airlines, JetBlue Airways, Alaska Airlines, and Air Excursions. Seattle and Washington, D.C. have 400 direct flights per week. When you arrive at Washington, D.C., consider visiting Lincoln Memorial, and National Mall.

Frequently asked questions

How long does it take to travel from Seattle to Washington, D.C.?
A one-way nonstop (direct) flight between Seattle and Washington, D.C. takes around 5.1 hours.
What is the flight distance between Seattle and Washington, D.C.?
The flight distance between Seattle and Washington, D.C. is 3705 km.
What airlines offer nonstop (direct) flights between Seattle and Washington, D.C.?
Several carriers operate flights between Seattle and Washington, D.C.. Airlines offering nonstop (direct) flights include Alaska Airlines, United Airlines.
What are the most popular routes to and from Seattle?
Travelers frequently search for route combinations, such as Seattle and London, Mexico City, New York, Las Vegas, Los Angeles, Guadalajara, Calgary, Edinburgh, Phoenix, San Francisco, Dallas, Chicago, Honolulu, San Diego, Ontario, Glasgow, Belfast, Denver, Istanbul, Kahului.
What are the most popular routes to and from Washington, D.C.?
Travelers frequently search for route combinations, such as Washington, D.C. and London, Manchester, Atlanta, Los Angeles, Orlando, Edinburgh, Glasgow, Mexico City, Dallas, Aberdeen, Tampa, Toronto, San Francisco, Denver, Boston, Houston, San Salvador, Lima, Miami, Las Vegas.
Which airports are there in Seattle?
Seattle is mainly served by Seattle–Tacoma International. But there are other airports nearby, including Boeing Field, Kenmore Air Harbor Seaplane Base.
What airports are near Seattle?
The main airport in Seattle is Seattle–Tacoma International. It is also served by Vancouver International, Portland International, Bellingham International, Abbotsford International, Paine Field Everett, Vancouver Harbour Flight Centre, Pangborn Memorial, Victoria Inner Harbour SPB, Yakima Air Terminal.
What airports are near Washington, D.C.?
The main airport in Washington, D.C. is Washington Dulles International. It is also served by Philadelphia International, Norfolk International, Richmond International, Atlantic City International, Lehigh Valley International, Trenton–Mercer, Harrisburg International, Salisbury–Ocean City–Wicomico Regional, Hagerstown Regional, Lancaster.
Which airlines fly between Seattle and Washington, D.C.?
Currently, you can fly between Seattle and Washington, D.C. with United Airlines, Frontier Airlines, JetBlue Airways, Alaska Airlines, Air Excursions.
When’s the best time to travel between Seattle and Washington, D.C.?
What flights operate between Seattle and Washington, D.C.?
How many airports are there near Seattle?
How many airports are there near Washington, D.C.?
What time do nonstop (direct) flights between Seattle and Washington, D.C. depart?
What time do nonstop (direct) flights between Seattle and Washington, D.C. arrive?
What time do flights between Seattle and Washington, D.C. depart?
What time do flights between Seattle and Washington, D.C. arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any origin and destination in the world by plane. Find the cheapest routes and best deals, as well as the best dates to travel.

Search flightsSearch direct flights

Explore alternative trips

Flights from Seattle

Flights to Washington, D.C.

Popular routes

The nearest countries with flights to Washington, D.C.

Here is a list of countries people are flying from

Other destination countries from Seattle

Here is a list of countries people are flying to

Airports near Seattle

Airports near Washington, D.C.

Download our app

Start your next adventure now. Download our app and explore cheap flights effortlessly!

Search flights
Find the best connection from Seattle to Washington, D.C.

Search, compare, and book flights to get there.

Search flights