How do most travelers feel about United Airlines?

The average rating from 4,016 United Airlines reviews by Cheapflights users is 6.2 (out of a maximum rating of 10). If you are considering flying WAS-SEA with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to Seattle with United Airlines.

Can I get a flight from Washington, D.C. to Seattle on United Airlines for under $500?

Cheapflights currently has 50 WAS-SEA flights for under $500. Flights to Seattle will vary based on many factors, like date and time. Click here to find the best price for your dates on Cheapflights.

How far ahead should I book a flight from Washington, D.C. to Seattle with United Airlines?

Booking with United Airlines 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Washington, D.C. to Seattle with United Airlines?

Currently, the most affordable month to book a United Airlines flight from Washington, D.C. to Seattle in January, with an average price of $247. Conversely, traveling with United Airlines from Washington, D.C. to Seattle in July will be the most expensive, with an average cost of $406. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Fly United Airlines from Washington, D.C. to SEA as low as $129

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Cheapflights users flying from Washington, D.C. to Seattle on United Airlines typically fly into Seattle/Tacoma Intl and depart from Washington, D.C. Dulles Intl. Select your dates above for pricing.

United Airlines flights from Washington, D.C. to Seattle in 2024

Popular in	June
Cheapest in	January
Average price (all airlines)	$403
One-way from	$129
Round-trip from	$258

Highest demand for flights from Washington, D.C. to Seattle/Tacoma Intl; 14% potential price increase.

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Best time to find cheap flights from Washington, D.C. to Seattle/Tacoma Intl; 2% potential price drop.

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Average price for all Washington, D.C. to Seattle/Tacoma Intl flights (one-way and round-trip).

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Cheapest one-way United Airlines flight from Washington, D.C. to Seattle/Tacoma Intl

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Cheapest round-trip United Airlines flight from Washington, D.C. to Seattle/Tacoma Intl

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Can I get a flight from Washington, D.C. to Seattle on United Airlines for under $500?
Cheapflights currently has 50 WAS-SEA flights for under $500. Flights to Seattle will vary based on many factors, like date and time. Click here to find the best price for your dates on Cheapflights.
How do most travelers feel about United Airlines?
The average rating from 4,016 United Airlines reviews by Cheapflights users is 6.2 (out of a maximum rating of 10). If you are considering flying WAS-SEA with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to Seattle with United Airlines.

Cheapest United Airlines flights from Washington, D.C. to Seattle

mar. 6/114:18 pmBWI - SEA

1 stop9h 32mUnited Airlines

lun. 6/176:35 pmSEA - BWI

1 stop7h 35mUnited Airlines

Deal found 5/30$258

Pick Dates

mar. 6/410:05 amBWI - SEA

1 stop8h 47mUnited Airlines

mar. 6/186:35 pmSEA - BWI

1 stop7h 35mUnited Airlines

Deal found 5/29$301

Pick Dates

mié. 6/1910:15 pmIAD - SEA

Nonstop5h 44mUnited Airlines

mar. 6/2511:59 pmSEA - IAD

1 stop6h 52mUnited Airlines

Deal found 5/29$307

Pick Dates

Direct flights from Washington, D.C. to Seattle on United Airlines

mié. 8/215:26 pmIAD - SEA

Nonstop5h 48mUnited Airlines

mar. 8/2712:50 pmSEA - IAD

Nonstop5h 04mUnited Airlines

Deal found 5/29$277

Pick Dates

jue. 9/58:55 amIAD - SEA

Nonstop5h 48mUnited Airlines

sáb. 9/148:10 amSEA - IAD

Nonstop5h 05mUnited Airlines

Deal found 5/28$283

Pick Dates

mar. 7/3010:10 pmIAD - SEA

Nonstop5h 44mUnited Airlines

jue. 8/810:30 pmSEA - IAD

Nonstop4h 59mUnited Airlines

Deal found 5/29$289

Pick Dates

Last minute deals on Cheapflights

mar. 6/410:05 amBWI - SEA

1 stop8h 47mUnited Airlines

mar. 6/186:35 pmSEA - BWI

1 stop7h 35mUnited Airlines

Deal found 5/29$301

Pick Dates

mar. 6/46:25 amBWI - SEA

2 stops11h 01mUnited Airlines

mar. 6/186:35 pmSEA - BWI

1 stop7h 35mUnited Airlines

Deal found 5/29$333

Pick Dates

vie. 6/710:05 amBWI - SEA

1 stop10h 32mUnited Airlines

jue. 6/136:35 pmSEA - BWI

1 stop7h 35mUnited Airlines

Deal found 5/30$346

Pick Dates

One-way United Airlines flights to Seattle from Washington, D.C.

mié. 6/56:05 amBWI - SEA

1 stop9h 38mUnited Airlines

Deal found 5/29$129

Pick Dates

mié. 8/285:26 pmIAD - SEA

Nonstop5h 48mUnited Airlines

Deal found 5/29$139

Pick Dates

mar. 7/3010:10 pmIAD - SEA

Nonstop5h 44mUnited Airlines

Deal found 5/29$145

Pick Dates

Best time to book a flight from Washington, D.C. to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Washington, D.C. with our price prediction graph.

Estimated round-trip price

Temperature and rainfall in Seattle by month

SEA Temperature	41 - 66.2 °F

SEA

Temperature

41 - 66.2 °F

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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Fly from Washington, D.C. to Seattle on another airline
Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

Delta flights from Washington, D.C. to Seattle/Tacoma Intl

Alaska Airlines flights from Washington, D.C. to Seattle/Tacoma Intl

Other United Airlines flights from Washington, D.C.
Browse through other United Airlines flights departing from Washington, D.C.. Flight routes are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

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Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

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Other popular destinations in North America
If Seattle is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

Flights to New York

Flights to Los Angeles

Flights to San Francisco

Flights to Fort Lauderdale

Popular flights with United Airlines
Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

United Airlines flights from Washington, D.C. to Honolulu

United Airlines flights from Washington, D.C. to Cancún

United Airlines flights from Washington, D.C. to Las Vegas

United Airlines flights from Washington, D.C. to Honolulu

United Airlines flights from Washington, D.C. to Cancún

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United Airlines flights from Washington, D.C. to Tampa

United Airlines flights from Washington, D.C. to Cancún

United Airlines flights from Washington, D.C. to Los Angeles

United Airlines flights from Washington, D.C. to Denver

United Airlines flights from Washington, D.C. to Fort Lauderdale

United Airlines flights from Washington, D.C. to Luis Munoz Marin Intl

United Airlines flights from Washington, D.C. to Los Angeles

United Airlines flights from Washington, D.C. to Las Vegas

United Airlines flights from Washington, D.C. to San Francisco

United Airlines flights from Washington, D.C. to Denver

United Airlines flights from Washington, D.C. to San Francisco

United Airlines flights from Washington, D.C. to Los Angeles

United Airlines flights from Washington, D.C. to Chicago

United Airlines flights from Washington, D.C. to Denver

United Airlines flights from Washington, D.C. to Cancún

United Airlines flights from Washington, D.C. to Los Angeles

United Airlines flights from Washington, D.C. to Denver

United Airlines flights from Washington, D.C. to Cancún

United Airlines flights from Washington, D.C. to Los Angeles

United Airlines flights from Washington, D.C. to Punta Cana

See what others are saying about United Airlines

United Airlines

7.4

Good

10,777 reviews

Check prices

Overview

Recent reviews

8.0

Very good|Mar 2022

Just a normal flight - all was just fine and reasonably comfortable given the physical limitations of flight - arrived safe and on time which are the important things. The only thing that could have been better - that was controllable - was the food - I am always amazed that it can get worse than it was before but United seems to have experts in this area and they should be commended on continuing to make the food worse when it seemed like it as as bad as it could get while using actual food as inputs. I'm guessing we are pretty close to rock bottom by now but United always seems be able to give that extra effort to eliminate that last little bit of remaining quality and taste. I would recommend that United stop having their accountants plan and prepare meals and snacks and let actual chefs, or at least cooks prepare them in the future.

6.0

Okay|Apr 2024

The staff were pleasant. There was no food or entertainment.

2.0

Poor|Nov 2021

Clear attendant at the Logan airport was awful. Rude and inconsiderate to everyone. Let every clear customer in front of every priority United customer. Usually they switch off groups but we were waiting 30 minutes when we were third from the front because every clear customer was let in front of us.

8.0

Very good|Jan 2022

Everything was great. Even though the flight got delayed 10 minutes we arrived on time

5.9

Fair|Aug 2021

Boarding was too long. The Seats are too thin. The snacks were water and a cookie.

1 out of 3593

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Cheapflights users flying from Washington, D.C. to Seattle on United Airlines typically fly into Seattle/Tacoma Intl and depart from Washington, D.C. Dulles Intl. Select your dates above for pricing.

United Airlines flights from Washington, D.C. to Seattle in 2024

Find detailed information about United Airlines flights from Washington, D.C. to Seattle. Explore the options provided by United Airlines to plan your journey from Washington, D.C. to Seattle. Data last updated mayo 30, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Washington, D.C. to Seattle on United Airlines for under $500?

How do most travelers feel about United Airlines?

Cheapest United Airlines flights from Washington, D.C. to Seattle

Direct flights from Washington, D.C. to Seattle on United Airlines

Last minute deals on Cheapflights

One-way United Airlines flights to Seattle from Washington, D.C.

Best time to book a flight from Washington, D.C. to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Washington, D.C. with our price prediction graph.

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Washington, D.C. to Seattle on another airline
Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

Other United Airlines flights from Washington, D.C.
Browse through other United Airlines flights departing from Washington, D.C.. Flight routes are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

Browse through other United Airlines flights departing from Washington, D.C.. Flight routes are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Other airlines servicing Washington, D.C. and Seattle
Choose from other airlines serving Washington, D.C. and Seattle.

Choose from other airlines serving Washington, D.C. and Seattle.

Other popular destinations in North America
If Seattle is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

If Seattle is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

Popular flights with United Airlines
Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

See what others are saying about United Airlines

Overview

Recent reviews

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Flights

United Airlines flights from Washington, D.C. to Seattle (WAS - SEA)

Cheapflights users flying from Washington, D.C. to Seattle on United Airlines typically fly into Seattle/Tacoma Intl and depart from Washington, D.C. Dulles Intl. Select your dates above for pricing.

United Airlines flights from Washington, D.C. to Seattle in 2024

Find detailed information about United Airlines flights from Washington, D.C. to Seattle. Explore the options provided by United Airlines to plan your journey from Washington, D.C. to Seattle. Data last updated mayo 30, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Washington, D.C. to Seattle on United Airlines for under $500?

How do most travelers feel about United Airlines?

Cheapest United Airlines flights from Washington, D.C. to Seattle

Direct flights from Washington, D.C. to Seattle on United Airlines

Last minute deals on Cheapflights

One-way United Airlines flights to Seattle from Washington, D.C.

Best time to book a flight from Washington, D.C. to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Washington, D.C. with our price prediction graph.

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Washington, D.C. to Seattle on another airlineConsider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.

See what others are saying about United Airlines

Overview

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Book with Flexibility

Travel Smart

Fly from Washington, D.C. to Seattle on another airline
Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on mayo 30, 2024.