Question 1

Which is the best airline for flights from Washington, D.C. to Seattle, Alaska Airlines or Southwest?

Accepted Answer

The two airlines most popular with KAYAK users for flights from Washington, D.C. to Seattle are Alaska Airlines and Southwest. With an average price for the route of $459 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Southwest is also a great choice for the route, with an average price of $337 and an overall rating of 7.9.

Question 2

How long does a flight from Washington, D.C. to Seattle take?

Accepted Answer

The duration of a nonstop flight to Seattle from Washington, D.C. is typically 5h 35m. The journey crosses a distance of 2,319 miles.

Question 3

How many flights are there between Washington, D.C. and Seattle per day?

Accepted Answer

Each day, there are between 12 and 13 nonstop flights that take off from Washington, D.C. and land in Seattle, with an average flight time of 5h 48m. The most common departure time is 9:00 am and most flights take off in the morning. Each week, there are 90 flights. The most frequent day of departure is Monday, when 14% of all weekly flights depart. The fewest flights depart on a Saturday.

Question 4

How many flights are there between Washington, D.C. and Seattle per day?

Accepted Answer

Each day, there are between 12 and 13 nonstop flights that take off from Washington, D.C. and land in Seattle, with an average flight time of 5h 48m. The most common departure time is 9:00 am and most flights take off in the morning. Each week, there are 90 flights. The most frequent day of departure is Monday, when 14% of all weekly flights depart. The fewest flights depart on a Saturday.

Question 5

What is the cheapest flight from Washington, D.C. to Seattle?

Accepted Answer

In the last 5 days, the lowest price for a flight from Washington, D.C. to Seattle was $169 for a one-way ticket and $315 for a round-trip.

Question 6

Do I need a passport to fly between Washington, D.C. and Seattle?

Accepted Answer

No, a passport isn't needed to fly from Washington, D.C. to Seattle. However, local authorities might ask for an official ID.

Question 7

Which airlines fly most frequently between Washington, D.C. and Seattle?

Accepted Answer

Washington, D.C. and Seattle are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (49 flights per week), United Airlines (20 flights per week), and Delta (14 flights per week).

Question 8

Which airlines fly most frequently between Washington, D.C. and Seattle?

Accepted Answer

Washington, D.C. and Seattle are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (49 flights per week), United Airlines (20 flights per week), and Delta (14 flights per week).

Question 9

What’s the cheapest day of the week to fly from Washington, D.C. to Seattle?

Accepted Answer

If your flying dates are flexible, you should consider flying to Seattle on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Washington, D.C. to Seattle. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

Question 10

What’s the cheapest day of the week to fly from Washington, D.C. to Seattle?

Accepted Answer

If your flying dates are flexible, you should consider flying to Seattle on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Washington, D.C. to Seattle. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

Question 11

Which airports will I be using when flying from Washington, D.C. to Seattle?

Accepted Answer

On your way to Seattle, you’ll fly out from one of these Washington, D.C. airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You’ll be landing at Seattle/Tacoma Intl.

Question 12

What’s the earliest departure time from Washington, D.C. to Seattle?

Accepted Answer

Early birds can take the earliest flight from Washington, D.C. at 6:03 am and will be landing in Seattle at 8:48 am.

Question 13

What’s the latest departure time from Washington, D.C. to Seattle?

Accepted Answer

If you prefer to fly at night, the latest flight from Washington, D.C. to Seattle jets off at 6:14 pm and lands at 9:09 pm.

Question 14

Which airlines fly non-stop between Washington, D.C. and Seattle?

Accepted Answer

There are 7 airlines that fly nonstop from Washington, D.C. to Seattle. They are: Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, JetBlue, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $99 for a round-trip flight. On average, the best prices for this route can be found at Delta.

Question 15

Which airlines fly non-stop between Washington, D.C. and Seattle?

Accepted Answer

There are 7 airlines that fly nonstop from Washington, D.C. to Seattle. They are: Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, JetBlue, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $99 for a round-trip flight. On average, the best prices for this route can be found at Delta.

Question 16

Which airlines offer Wi-Fi service onboard planes from Washington, D.C. to Seattle?

Accepted Answer

Alaska Airlines, Delta, and JetBlue offer inflight Wi-Fi service on the Washington, D.C. to Seattle flight route.

Question 17

Which aircraft models fly most regularly from Washington, D.C. to Seattle?

Accepted Answer

The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Washington, D.C. to Seattle flight route.

Question 18

Which airline alliances offer flights from Washington, D.C. to Seattle?

Accepted Answer

SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Washington, D.C. and Seattle, with SkyTeam being the most commonly used for this route.

Question 19

On which days can I fly direct from Washington, D.C. to Seattle?

Accepted Answer

There are nonstop flights from Washington, D.C. to Seattle on a daily basis.

Question 20

Do all three Washington airports have a USO?

Accepted Answer

Yes. IAD, DCA, and BWI each have a USO lounge with complimentary amenities for active-duty US service members, US military retirees, members of the National Guard, and Reservists, and all their families.

Question 21

Do all three Washington airports have a place to pray?

Accepted Answer

Yes. IAD provides its passengers and staff with an Inter-faith Chapel that provides a quiet place for prayer and meditation. DCA also has an Inter-faith Chapel that serves as a quiet place for reflection, meditation, and sanctuary for anyone who wants it. BWI has a Meditation Room, which is also a quiet place of reflection and sanctuary.

Question 22

How do I get from SEA into the city center of Seattle?

Accepted Answer

The easiest and most convenient way to get from SEA into Seattle is to take the Light Rail #1 from the Light Rail Station at SEA, which is located on the 4th floor near the Parking Garage. This train will take you to many locations throughout the Seattle metropolitan area.

Question 23

How can I fly from each Washington airport into SEA?

Accepted Answer

Several airlines operate non-stop flights from an airport in Washington to Seattle-Tacoma International Airport SEA. Alaska Airlines, Delta, and United Airlines are among the carriers that depart from IAD and fly non-stop to SEA. Alaska Airlines is one carrier that departs from DCA and BWI and flies non-stop to SEA. Airlines such as Delta, Frontier, and American Airlines operate flights from WAS to SEA with one stop. You can get a one-stop flight to Seattle that departs from IAD, DCA, or BWI. Some layover cities include Chicago (ORD), New York (JFK), and Detroit (DTW).

Question 24

What is the cheapest month to fly from Washington, D.C. to Seattle?

Accepted Answer

The cheapest month for flights from Washington, D.C. to Seattle is January, where tickets cost $119 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $778 and $711 respectively.

Question 25

What is the cheapest month to fly from Washington, D.C. to Seattle?

Accepted Answer

The cheapest month for flights from Washington, D.C. to Seattle is January, where tickets cost $119 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $778 and $711 respectively.

Question 26

How does KAYAK find such low prices on flights from Washington, D.C. to Seattle?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Seattle.

Question 27

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Seattle?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

Question 28

What is the Hacker Fare option on flights from Washington, D.C. to Seattle?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Washington, D.C. with another airline.

Question 29

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Seattle?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Question 30

What is the cheapest layover airport when flying from Washington, D.C. to Seattle?

Accepted Answer

Flights via Nashville (BNA) offer the most affordable fares, with an average round-trip price of $226.

Question 31

What is the most popular layover airport when flying from Washington, D.C. to Seattle?

Accepted Answer

Denver (DEN) is the top choice – 42% of KAYAK users who clicked on 1-stop flights from Washington, D.C. to Seattle picked an itinerary connecting there.

Question 32

Which layover airport has the quickest connection when flying from Washington, D.C. to Seattle?

Accepted Answer

If you prefer a quick connection, Nashville (BNA) often has the shortest layovers from Washington, D.C. to Seattle, with an average of 0h 50m.

Question 33

Which layover airport offers the shortest total travel time from Washington, D.C. to Seattle?

Accepted Answer

Consider flying via St. Louis (STL) for the shortest journey. The average one-way travel time for flights connecting there is 7h 20m.

Question 34

Which cabin class options are there for flights between Washington, D.C. and Seattle?

Accepted Answer

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 35

Which cabin class options are there for flights between Washington, D.C. and Seattle?

Accepted Answer

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 36

Which airlines provide the cheapest flights from Washington, D.C. to Seattle?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from Washington, D.C. to Seattle were found on American Airlines ($315) and Southwest ($315).

Question 37

Which airlines provide the cheapest flights from Washington, D.C. to Seattle?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from Washington, D.C. to Seattle were found on American Airlines ($315) and Southwest ($315).

Question 38

What is the cheapest Washington, D.C. to Seattle flight route?

Accepted Answer

The cheapest return flight from Washington, D.C. to Seattle costs $295 on the route between Washington, D.C. Dulles Intl Airport (IAD) and Seattle (SEA). Over the past month, this route was, on average, 9% cheaper than other Washington, D.C.-Seattle routes. It is also the most popular route.

Question 39

What is the cheapest Washington, D.C. to Seattle flight route?

Accepted Answer

The cheapest return flight from Washington, D.C. to Seattle costs $295 on the route between Washington, D.C. Dulles Intl Airport (IAD) and Seattle (SEA). Over the past month, this route was, on average, 9% cheaper than other Washington, D.C.-Seattle routes. It is also the most popular route.

Question 40

How far in advance should I book a flight from Washington, D.C. to Seattle?

Accepted Answer

To get a below average price on the flight from Washington, D.C. to Seattle, you should book around 4 weeks before departure, which saves you about 59% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Question 41

How far in advance should I book a flight from Washington, D.C. to Seattle?

Accepted Answer

To get a below average price on the flight from Washington, D.C. to Seattle, you should book around 4 weeks before departure, which saves you about 59% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Question 42

Can I save money by flying with a layover from Washington, D.C. to Seattle?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $510 on average.

Question 43

Can I save money by flying with a layover from Washington, D.C. to Seattle?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $510 on average.

Question 44

How much is a round-trip flight from Washington, D.C. to Seattle?

Accepted Answer

Flight prices are below average for this route right now.Flights to Seattle from Washington, D.C. usually cost between $392 and $602 in November.
The lowest price found in the past 5 days was $315 on American Airlines (Nov 5-Nov 10).

Question 45

What are the most popular airlines flying to Seattle?

Accepted Answer

The most popular airline among KAYAK users flying to Seattle is Alaska Airlines, followed by United Airlines and Delta.

Low season	January
High season	July
Cheapest flight	$169

WAS - SEA

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Cheap Flights from Washington, D.C. to Seattle (WAS-SEA)

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KAYAK's insights & trends for Washington, D.C. to Seattle flights

How much is a round-trip flight from Washington, D.C. to Seattle?

What is the cheapest Washington, D.C. to Seattle flight route?

What’s the cheapest day of the week to fly from Washington, D.C. to Seattle?

What is the cheapest month to fly from Washington, D.C. to Seattle?

Can I save money by flying with a layover from Washington, D.C. to Seattle?

How far in advance should I book a flight from Washington, D.C. to Seattle?

Which airlines provide the cheapest flights from Washington, D.C. to Seattle?

Which airlines fly most frequently between Washington, D.C. and Seattle?

Which airlines fly non-stop between Washington, D.C. and Seattle?

What is the most popular layover airport when flying from Washington, D.C. to Seattle?

What is the cheapest layover airport when flying from Washington, D.C. to Seattle?

Which layover airport offers the shortest total travel time from Washington, D.C. to Seattle?

Which layover airport has the quickest connection when flying from Washington, D.C. to Seattle?

Which cabin class options are there for flights between Washington, D.C. and Seattle?

How many flights are there between Washington, D.C. and Seattle per day?

How long does a flight from Washington, D.C. to Seattle take?

What’s the earliest departure time from Washington, D.C. to Seattle?

What’s the latest departure time from Washington, D.C. to Seattle?

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