$216 Find Cheap Flights from Key West to Washington - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Key West to Washington departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Key West to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Key West to Washington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Key West to Washington

Wed, Sep 2 - Tue, Sep 15
Delta Logo
1:59 pm - 9:44 pm
EYW
-
PDX
10h 45m
1 stop
Delta Logo
10:57 pm - 10:47 am
PDX
-
EYW
8h 50m
1 stop
$429Delta
Wed, Sep 9 - Wed, Sep 16
Delta Logo
6:19 pm - 11:59 pm
EYW
-
SEA
8h 40m
1 stop
Delta Logo
7:20 am - 8:01 pm
SEA
-
EYW
9h 41m
1 stop
$429Delta
Wed, Sep 9 - Wed, Sep 16
Delta Logo
6:19 pm - 11:59 pm
EYW
-
SEA
8h 40m
1 stop
Delta Logo
7:20 am - 8:01 pm
SEA
-
EYW
9h 41m
1 stop
$464Delta
Wed, Sep 2 - Tue, Sep 15
Delta Logo
1:59 pm - 9:44 pm
EYW
-
PDX
10h 45m
1 stop
Delta Logo
1:30 pm - 10:47 am
PDX
-
EYW
18h 17m
2 stops
$473Delta
Wed, Sep 2 - Mon, Sep 14
Delta Logo
1:59 pm - 9:44 pm
EYW
-
PDX
10h 45m
1 stop
Delta Logo
10:57 pm - 10:47 am
PDX
-
EYW
8h 50m
1 stop
$482Delta
Wed, Oct 28 - Wed, Nov 4
American Airlines Logo
12:48 pm - 7:54 pm
EYW
-
PDX
10h 06m
1 stop
American Airlines Logo
5:30 am - 4:29 pm
PDX
-
EYW
7h 59m
1 stop
$487American Airlines
Tue, Nov 24 - Tue, Dec 1
American Airlines Logo
2:39 pm - 9:18 pm
EYW
-
SEA
9h 39m
1 stop
American Airlines Logo
5:24 am - 4:29 pm
SEA
-
EYW
8h 05m
1 stop
$487American Airlines
Thu, Jul 16 - Mon, Jul 20
United Airlines Logo
4:00 pm - 10:56 pm
EYW
-
SEA
9h 56m
1 stop
United Airlines Logo
11:00 pm - 1:30 pm
SEA
-
EYW
11h 30m
1 stop
$529United Airlines
Thu, Jul 16 - Mon, Jul 20
Multiple Airlines Logo
11:04 am - 10:39 am
EYW
-
SEA
26h 35m
2 stops
Multiple Airlines Logo
7:06 pm - 12:34 pm
SEA
-
EYW
14h 28m
2 stops
$559Multiple Airlines
Fri, Oct 30 - Tue, Nov 3
United Airlines Logo
4:00 pm - 10:53 pm
EYW
-
SEA
9h 53m
1 stop
United Airlines Logo
11:16 pm - 1:59 pm
SEA
-
EYW
11h 43m
1 stop
$582United Airlines
Booking Insights

KAYAK's insights & trends for Key West to Washington flights

Get data-powered insights and trends into flights from Key West to Washington to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Key West to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Key West to Washington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Key West to Washington is May, when tickets cost $0 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $651 and $563 respectively.

Good to know

Low seasonApril
Cheapest flight$216
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Key West to Portland

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Key West to Washington?

    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 Key West to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Key West to Washington?

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

  • What is the Hacker Fare option on flights from Key West to Washington?

    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 from Key West to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Key West to Washington?

    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 from Key West to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Key West to Washington

 
See real verified KAYAK customer reviews for airlines flying from Key West to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Key West to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11766 reviews
7.5Boarding
7.9Crew
6.4Food
6.8Entertainment
7.2Comfort
Airline reviews

I have never been assaulted they way I was today in Charlotte - shame on American

2.0 MediocreDavid, Mar 2026
EYW - CLT
Read more American Airlines reviews

I have never been assaulted they way I was today in Charlotte - shame on American

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

It was a code share with Alaska - would have been great if I actually made it on the plane, claimed I didn’t have a ticket or a seat even thought I was checked in.

The main problem was delay. The plane was at the gate early and bags were loaded. However, there was no crew for the flight. They were inbound from LGA and had to land and make their way to our gate. It took more than 40 minutes. Then, once the crew arrived and boarded, one of the crew members had to deplane and then a replacement crew member had to be found. It took another 40 minutes or so to get the final crew member. In all, we took off about 2 hours later than our scheduled departure time. Once in the air, the flight was great. Smooth most of the way. The crew was professional and efficient.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

Terrible flight seats where really uncomfortable I had body aches for 2 days and flight was delays almost two hours

Plane was extremely hot. Our flight were pushed back and changed several times. This was too excessive for one trip. I don’t feel like the passengers were priority.

Everything you need to know for your flight from Key West to Washington

Information on your arrival and departure airports