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Cheap flights from Washington to Key West from $186

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Key West departing on 4/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Washington to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:00 am - 5:02 pm
SEA
-
EYW
8h 02m
1 stop
American Airlines Logo
6:46 pm - 12:51 am
EYW
-
SEA
9h 05m
1 stop
$329American Airlines
Tue, Apr 14 - Wed, Apr 22
American Airlines Logo
9:44 pm - 11:11 am
PDX
-
EYW
10h 27m
1 stop
American Airlines Logo
3:56 pm - 11:44 pm
EYW
-
PDX
10h 48m
1 stop
$329American Airlines
Sun, Mar 1 - Tue, Mar 10
American Airlines Logo
10:08 pm - 1:15 pm
SEA
-
EYW
12h 07m
2 stops
American Airlines Logo
12:48 pm - 9:57 pm
EYW
-
SEA
12h 09m
1 stop
$334American Airlines
Sat, Feb 28 - Wed, Mar 4
American Airlines Logo
8:00 am - 10:58 pm
PDX
-
EYW
11h 58m
2 stops
American Airlines Logo
2:29 pm - 10:49 pm
EYW
-
PDX
11h 20m
1 stop
$334American Airlines
Wed, Apr 22 - Wed, Apr 29
United Airlines Logo
10:38 pm - 1:23 pm
PDX
-
EYW
11h 45m
1 stop
United Airlines Logo
4:05 pm - 10:45 pm
EYW
-
PDX
9h 40m
1 stop
$359United Airlines
Wed, Mar 4 - Wed, Mar 11
Delta Logo
6:00 am - 7:41 pm
GEG
-
EYW
10h 41m
2 stops
Delta Logo
2:40 pm - 9:37 pm
EYW
-
GEG
9h 57m
1 stop
$359Delta
Wed, Mar 11 - Tue, Mar 17
Delta Logo
6:00 am - 7:41 pm
GEG
-
EYW
10h 41m
2 stops
Delta Logo
2:40 pm - 12:03 am
EYW
-
GEG
12h 23m
2 stops
$364Delta
Wed, Mar 11 - Tue, Mar 17
United Airlines Logo
10:55 am - 10:09 pm
SEA
-
EYW
8h 14m
1 stop
United Airlines Logo
4:05 pm - 10:45 pm
EYW
-
SEA
9h 40m
1 stop
$386United Airlines
Thu, Feb 26 - Thu, Mar 5
Delta Logo
10:55 pm - 10:10 am
PDX
-
EYW
8h 15m
1 stop
Delta Logo
6:19 pm - 10:04 am
EYW
-
PDX
18h 45m
2 stops
$388Delta
Sat, May 2 - Tue, May 5
United Airlines Logo
11:35 pm - 1:18 pm
SEA
-
EYW
10h 43m
1 stop
United Airlines Logo
3:56 pm - 10:43 pm
EYW
-
SEA
9h 47m
1 stop
$389United Airlines
Sat, Feb 21 - Wed, Feb 25

United Airlines flights from State of Washington to Key West

Our best United Airlines deals on State of Washington to Key West flight tickets
United Airlines
Mar 4
PDX10:38 pmPortland
11h 45m
1 stop
EYW1:23 pmKey West
Mar 11
EYW4:05 pmKey West
9h 40m
1 stop
PDX10:45 pmPortland
$359
United Airlines
Feb 26
SEA10:55 amSeattle/Tacoma Intl
8h 14m
1 stop
EYW10:09 pmKey West
Mar 5
EYW4:05 pmKey West
9h 40m
1 stop
SEA10:45 pmSeattle/Tacoma Intl
$386
United Airlines
Feb 21
SEA11:35 pmSeattle/Tacoma Intl
10h 43m
1 stop
EYW1:18 pmKey West
Feb 25
EYW3:56 pmKey West
9h 47m
1 stop
SEA10:43 pmSeattle/Tacoma Intl
$389

American Airlines flights from State of Washington to Key West

Our best American Airlines deals on State of Washington to Key West flight tickets
American Airlines
Mar 1
PDX9:44 pmPortland
10h 27m
1 stop
EYW11:11 amKey West
Mar 10
EYW3:56 pmKey West
10h 48m
1 stop
PDX11:44 pmPortland
$329
American Airlines
Apr 22
PDX8:00 amPortland
11h 58m
2 stops
EYW10:58 pmKey West
Apr 29
EYW2:29 pmKey West
11h 20m
1 stop
PDX10:49 pmPortland
$334
American Airlines
Apr 22
PDX8:00 amPortland
11h 58m
2 stops
EYW10:58 pmKey West
Apr 29
EYW2:01 pmKey West
12h 52m
2 stops
PDX11:53 pmPortland
$339

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 8, 2026.
Use the filters below to find and compare flights from Washington to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Tue 4/14

6:00 am-5:02 pm

1 stop8h 02m

Key West

Wed 4/22

6:46 pm-12:51 am

1 stop9h 05m

$329

PortlandKey West

PDX - EYW

PDXEYW

Portland

Sun 3/1

9:44 pm-11:11 am

1 stop10h 27m

Key West

Tue 3/10

3:56 pm-11:44 pm

1 stop10h 48m

$329

SeattleKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Sat 2/28

10:08 pm-1:15 pm

2 stops12h 07m

Key West

Wed 3/4

12:48 pm-9:57 pm

1 stop12h 09m

$334

PortlandKey West

PDX - EYW

PDXEYW

Portland

Wed 4/22

8:00 am-10:58 pm

2 stops11h 58m

Key West

Wed 4/29

2:29 pm-10:49 pm

1 stop11h 20m

$334

PortlandKey West

PDX - EYW

PDXEYW

Portland

Wed 3/4

10:38 pm-1:23 pm

1 stop11h 45m

Key West

Wed 3/11

4:05 pm-10:45 pm

1 stop9h 40m

$359

SpokaneKey West

GEG - EYW

GEGEYW

Spokane

Wed 3/11

6:00 am-7:41 pm

2 stops10h 41m

Key West

Tue 3/17

2:40 pm-9:37 pm

1 stop9h 57m

$359

SpokaneKey West

GEG - EYW

GEGEYW

Spokane

Wed 3/11

6:00 am-7:41 pm

2 stops10h 41m

Key West

Tue 3/17

2:40 pm-12:03 am

2 stops12h 23m

$364

SeattleKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Thu 2/26

10:55 am-10:09 pm

1 stop8h 14m

Key West

Thu 3/5

4:05 pm-10:45 pm

1 stop9h 40m

$386

PortlandKey West

PDX - EYW

PDXEYW

Portland

Sat 5/2

10:55 pm-10:10 am

1 stop8h 15m

Key West

Tue 5/5

6:19 pm-10:04 am

2 stops18h 45m

$388

SeattleKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Sat 2/21

11:35 pm-1:18 pm

1 stop10h 43m

Key West

Wed 2/25

3:56 pm-10:43 pm

1 stop9h 47m

$389

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Key West from

How to get the cheapest flight ticket from State of Washington to Key West

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Key West?

In general, September is the cheapest month to fly from State of Washington to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $383. If you are unable to visit Key West during the month of September, then departing from State of Washington during the month October is also very affordable. Most momondo users find prices during this month for around $458.

Can stopping save me money on State of Washington to Key West flights?

You could potentially save up to 18% on your flight if you consider stops on a State of Washington to Key West flight.

Cheap State of Washington to Key West flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Key West

Fastest flight time

7h 46m

Direct flights

None
The fastest flight from State of Washington to Key West takes 7h 46m
There are no direct flights from State of Washington to Key West. There are no popular flight routes from State of Washington to Key West.
Search flight deals

  • When did momondo last update prices for flights from Washington to Key West Airport?

    Prices for flights from Washington to Key West Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington to Key West Airport?

  • How old do you have to be to fly from Washington to Key West Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from State of Washington to Key West

Compare and see reviews for airlines that fly from State of Washington to Key West with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $328Free CancellationRating
7.2
11,255 reviews
Search American Airlines flights
DeltaPriceFrom $338Free CancellationRating
7.9
8,173 reviews
Search Delta flights
United AirlinesPriceFrom $348Free CancellationRating
7.4
9,257 reviews
Search United Airlines flights

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Key West?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Key West. momondo saves you time and could save you money on your trip.

Can I find flights from Washington to Key West with flexible booking policies on momondo?

momondo does allow users to show only those flights to Key West from Washington which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington to Key West?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Key West.

I’m not ready to book a flight from Washington to Key West right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Key West from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Key West trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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