Question 1

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

Accepted Answer

The two airlines most popular with KAYAK users for flights from Seattle to Washington, D.C. are Southwest and Alaska Airlines. With an average price for the route of $334 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $460 and an overall rating of 7.9.

Question 2

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

Accepted Answer

A direct flight to Washington, D.C. will take on average 4h 55m to travel the 2,319 miles flying distance from Seattle.

Question 3

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

Accepted Answer

Each day, there are between 11 and 13 nonstop flights that take off from Seattle and land in Washington, D.C., with an average flight time of 5h 04m. The most common departure time is 10:00 pm and most flights take off in the morning, while the most flights land at Washington, D.C. Dulles Intl Airport. Each week, there are 84 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Tuesday.

Question 4

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

Accepted Answer

Each day, there are between 11 and 13 nonstop flights that take off from Seattle and land in Washington, D.C., with an average flight time of 5h 04m. The most common departure time is 10:00 pm and most flights take off in the morning, while the most flights land at Washington, D.C. Dulles Intl Airport. Each week, there are 84 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Tuesday.

Question 5

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

Accepted Answer

In the last 5 days, the lowest price for a flight from Seattle to Washington, D.C. was $84 for a one-way ticket and $232 for a round-trip.

Question 6

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

Accepted Answer

A passport is not required to fly from Seattle to Washington, D.C..

Question 7

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

Accepted Answer

Alaska Airlines connects Seattle to Washington, D.C. with 49 flights per week. Delta also offers 14 flights per week, while United Airlines follows with 14 flights per week.

Question 8

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

Accepted Answer

Alaska Airlines connects Seattle to Washington, D.C. with 49 flights per week. Delta also offers 14 flights per week, while United Airlines follows with 14 flights per week.

Question 9

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

Accepted Answer

If you are looking for a flight deal from Seattle to Washington, D.C., look for departures on Fridays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Washington, D.C., Wednesday is the cheapest day to fly and Sunday is the most expensive.

Question 10

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

Accepted Answer

If you are looking for a flight deal from Seattle to Washington, D.C., look for departures on Fridays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Washington, D.C., Wednesday is the cheapest day to fly and Sunday is the most expensive.

Question 11

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

Accepted Answer

Early birds can take the earliest flight from Seattle at 7:20 am and will be landing in Washington, D.C. at 3:21 pm.

Question 12

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

Accepted Answer

If you prefer to fly at night, the latest flight from Seattle to Washington, D.C. jets off at 11:04 pm and lands at 7:09 am.

Question 13

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

Accepted Answer

There are 6 airlines that fly nonstop from Seattle to Washington, D.C.. They are: Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $108 for a round-trip flight. On average, the best prices for this route can be found at Hawaiian Airlines.

Question 14

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

Accepted Answer

There are 6 airlines that fly nonstop from Seattle to Washington, D.C.. They are: Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $108 for a round-trip flight. On average, the best prices for this route can be found at Hawaiian Airlines.

Question 15

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

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

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

Accepted Answer

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

Question 18

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

Accepted Answer

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

Question 19

Does IAD have an on-site hotel?

Accepted Answer

IAD has one on-site hotel. Referred to as Sleepbox Lounge, this hotel is between Gates A6 and A14, near the AeroTrain in Concourse A. You'll have a good rest at this hotel, as it features comfortable rooms.

Question 20

Is there an on-site restaurant at DCA?

Accepted Answer

If you're hungry, you can order food before exiting DCA, as this airport is full of restaurants. Some notable restaurants at this airport include Matsutake Sushi, American Tap Room, District Bar, Custom Burger, Cava Mezze Grill, and Grille District. If you just want snacks, you can visit the retail stores located throughout the airport.

Question 21

Can I rent a car at BWI?

Accepted Answer

If you want to rent a car once you disembark from your flight at BWI, you'll be able to do so. This is because BWI is connected to an off-site car rental facility that houses branches for reliable car rental agencies like Budget, Hertz, National, Alamo, Avis, Thrifty, and Enterprise. To board the shuttle, you'll use to travel to the airport's car rental facility, and head to the lower level of BWI's main terminal.

Question 22

Does SEA have a children's play area?

Accepted Answer

SEA has a children's play area. Located between the Central Terminal and Gates A, across from Seattle Taproom, this children's play area features several toys and soft playgrounds. Daily, it operates round-the-clock.

Question 23

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

Accepted Answer

The cheapest month for flights from Seattle to Washington, D.C. is January, where tickets cost $329 (return) on average. On the other hand, the most expensive months are June and November, where the average cost of round-trip tickets is $525 and $483 respectively.

Question 24

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

Accepted Answer

The cheapest month for flights from Seattle to Washington, D.C. is January, where tickets cost $329 (return) on average. On the other hand, the most expensive months are June and November, where the average cost of round-trip tickets is $525 and $483 respectively.

Question 25

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

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 Seattle to Washington, D.C..

Question 26

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

Accepted Answer

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

Question 27

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

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 Washington, D.C. with an airline and back to Seattle with another airline.

Question 28

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

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 Washington, D.C. from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Question 29

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

Accepted Answer

Flights via Charlotte (CLT) offer the most affordable fares, with an average round-trip price of $196.

Question 30

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

Accepted Answer

Denver (DEN) is the top choice – 35% of KAYAK users who clicked on 1-stop flights from Seattle to Washington, D.C. picked an itinerary connecting there.

Question 31

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

Accepted Answer

If you prefer a quick connection, Charlotte (CLT) often has the shortest layovers from Seattle to Washington, D.C., with an average of 0h 55m.

Question 32

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

Accepted Answer

Consider flying via St. Louis (STL) for the shortest journey. The average one-way travel time for flights connecting there is 6h 30m.

Question 33

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

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 34

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

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

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from Seattle to Washington, D.C. were found on American Airlines ($232) and Southwest ($237).

Question 36

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

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from Seattle to Washington, D.C. were found on American Airlines ($232) and Southwest ($237).

Question 37

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

Accepted Answer

The cheapest return flight from Seattle to Washington, D.C. costs $228 on the route between Seattle (SEA) and Washington, D.C. Reagan-National Airport (DCA). Over the past month, this route was, on average, 10% cheaper than other Seattle-Washington, D.C. routes. The most popular route is between Seattle (SEA) and Washington, D.C. Dulles Intl Airport (IAD).

Question 38

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

Accepted Answer

The cheapest return flight from Seattle to Washington, D.C. costs $228 on the route between Seattle (SEA) and Washington, D.C. Reagan-National Airport (DCA). Over the past month, this route was, on average, 10% cheaper than other Seattle-Washington, D.C. routes. The most popular route is between Seattle (SEA) and Washington, D.C. Dulles Intl Airport (IAD).

Question 39

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

Accepted Answer

To get a below average price on the flight from Seattle to Washington, D.C., you should book around 4 weeks before departure, which saves you about 51% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Question 40

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

Accepted Answer

To get a below average price on the flight from Seattle to Washington, D.C., you should book around 4 weeks before departure, which saves you about 51% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Question 41

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

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 $461 on average.

Question 42

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

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 $461 on average.

Question 43

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

Accepted Answer

Flight prices are below average for this route right now.Flights to Washington, D.C. from Seattle usually cost between $325 and $523 in October.
The lowest price found in the past 5 days was $232 on American Airlines (Oct 13-Oct 19).

Question 44

What are the most popular airlines flying to Washington, D.C.?

Accepted Answer

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

Low season	January
High season	December
Cheapest flight	$84

SEA - WAS

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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