What is the difference between the most popular and the most frequent airline at Key West?

Delta operates the most flights from Ireland to Key West at 0 per week, and for this route Delta is also the airline most often selected by KAYAK users searching for flights from Ireland to Key West. The two are sometimes different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

How do I know if a flight to Key West is a good deal?

A good deal on a flight to Key West is around €789 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

Which airlines should I consider for flights to Key West?

Delta is the most popular airline for KAYAK users flying to Key West and has the best on-time record at the destination's main airport.

What is the cheapest flight to Key West?

Dublin to Key West is the cheapest route at €665 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to Key West?

On average, a return flight from Ireland to Key West costs €887, based on KAYAK data over the past 12 months. Return fares from Dublin average €760.

What is the cheapest time of day to fly to Key West?

Morning flights to Key West are the cheapest at €888 return on average. Morning flights are the most expensive at €888.

What is a good deal for flights to Key West?

Flights under €789 are considered a good deal. 25% of KAYAK users found return flights to Key West at or below these prices, with the lowest fares from: •Dublin €671.

What are the most popular airlines flying to Key West?

Delta is the only airline flying to Key West on KAYAK.

€665 CHEAP FLIGHTS to Key West in 2026/27

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Cheapest return flight

€665

Typical prices: €789-€958

Delta

Thu 15/11Thu 22/11

DUB - EYW • 2 stops

Cheapest one-way flight

€1,832

Typical prices: €737-€820

Finnair

Wed 24/10

DUB - EYW • 1 stop

Top airlines

Delta

Best reviews • 7.8 score

Airline reviews

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Flight Deals

Cheap Flights to Key West

Discover the best prices for you by selecting your travel dates on KAYAK.

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One-way

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Recent return flight deals to Key West

Sun, 15 Nov - Sun, 22 Nov

05:45 - 20:00DUB Dublin-EYW Key West

19h 15m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

07:30 - 07:45EYW Key West-DUB Dublin

19h 15m1 stop Atlanta Hartsfield-Jackson

€665Delta

Mon, 14 Dec - Thu, 14 Jan

09:00 - 14:36DUB Dublin-EYW Key West

34h 36m2 stops Toronto Pearson Intl Newark

17:54 - 07:30EYW Key West-DUB Dublin

32h 36m2 stops Chicago O'Hare Intl Newark

€666United Airlines

Mon, 14 Dec - Thu, 14 Jan

09:00 - 11:24DUB Dublin-EYW Key West

31h 24m2 stops Toronto Pearson Intl Chicago O'Hare Intl

16:09 - 07:30EYW Key West-DUB Dublin

34h 21m2 stops Chicago O'Hare Intl Newark

€667United Airlines

Mon, 14 Dec - Thu, 14 Jan

10:40 - 11:24DUB Dublin-EYW Key West

29h 44m1 stop Chicago O'Hare Intl

17:54 - 08:10EYW Key West-DUB Dublin

33h 16m1 stop Chicago O'Hare Intl

€668United Airlines

Mon, 14 Dec - Thu, 14 Jan

13:35 - 14:36DUB Dublin-EYW Key West

30h 01m1 stop Newark

16:09 - 07:30EYW Key West-DUB Dublin

34h 21m2 stops Chicago O'Hare Intl Newark

€670United Airlines

Mon, 14 Dec - Thu, 14 Jan

09:00 - 11:24DUB Dublin-EYW Key West

31h 24m2 stops Toronto Pearson Intl Chicago O'Hare Intl

17:51 - 07:30EYW Key West-DUB Dublin

32h 39m2 stops Chicago O'Hare Intl Newark

€671United Airlines

Sun, 15 Nov - Sun, 22 Nov

09:40 - 17:10DUB Dublin-EYW Key West

12h 30m1 stop Atlanta Hartsfield-Jackson

07:30 - 07:45EYW Key West-DUB Dublin

19h 15m1 stop Atlanta Hartsfield-Jackson

€674Delta

Thu, 4 Feb - Sun, 7 Feb

09:30 - 14:08DUB Dublin-EYW Key West

33h 38m1 stop Newark

17:51 - 08:10EYW Key West-DUB Dublin

33h 19m1 stop Chicago O'Hare Intl

€688United Airlines

Mon, 14 Dec - Thu, 14 Jan

11:30 - 13:56DUB Dublin-EYW Key West

31h 26m1 stop Philadelphia

17:32 - 08:30EYW Key West-DUB Dublin

9h 58m1 stop Philadelphia

€689American Airlines

Mon, 14 Dec - Thu, 14 Jan

11:30 - 13:56DUB Dublin-EYW Key West

31h 26m1 stop Philadelphia

17:32 - 08:30EYW Key West-DUB Dublin

9h 58m1 stop Philadelphia

€690American Airlines

All return flight deals to Key West

Sun, 15 Nov - Sun, 22 Nov

05:45 - 20:00DUB Dublin-EYW Key West

19h 15m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

07:30 - 07:45EYW Key West-DUB Dublin

19h 15m1 stop Atlanta Hartsfield-Jackson

€665Delta

Mon, 14 Dec - Thu, 14 Jan

09:00 - 14:36DUB Dublin-EYW Key West

34h 36m2 stops Toronto Pearson Intl Newark

17:54 - 07:30EYW Key West-DUB Dublin

32h 36m2 stops Chicago O'Hare Intl Newark

€666United Airlines

Mon, 14 Dec - Thu, 14 Jan

09:00 - 11:24DUB Dublin-EYW Key West

31h 24m2 stops Toronto Pearson Intl Chicago O'Hare Intl

16:09 - 07:30EYW Key West-DUB Dublin

34h 21m2 stops Chicago O'Hare Intl Newark

€667United Airlines

Mon, 14 Dec - Thu, 14 Jan

10:40 - 11:24DUB Dublin-EYW Key West

29h 44m1 stop Chicago O'Hare Intl

17:54 - 08:10EYW Key West-DUB Dublin

33h 16m1 stop Chicago O'Hare Intl

€668United Airlines

Mon, 14 Dec - Thu, 14 Jan

13:35 - 14:36DUB Dublin-EYW Key West

30h 01m1 stop Newark

16:09 - 07:30EYW Key West-DUB Dublin

34h 21m2 stops Chicago O'Hare Intl Newark

€670United Airlines

Mon, 14 Dec - Thu, 14 Jan

09:00 - 11:24DUB Dublin-EYW Key West

31h 24m2 stops Toronto Pearson Intl Chicago O'Hare Intl

17:51 - 07:30EYW Key West-DUB Dublin

32h 39m2 stops Chicago O'Hare Intl Newark

€671United Airlines

Sun, 15 Nov - Sun, 22 Nov

09:40 - 17:10DUB Dublin-EYW Key West

12h 30m1 stop Atlanta Hartsfield-Jackson

07:30 - 07:45EYW Key West-DUB Dublin

19h 15m1 stop Atlanta Hartsfield-Jackson

€674Delta

Thu, 4 Feb - Sun, 7 Feb

09:30 - 14:08DUB Dublin-EYW Key West

33h 38m1 stop Newark

17:51 - 08:10EYW Key West-DUB Dublin

33h 19m1 stop Chicago O'Hare Intl

€688United Airlines

Mon, 14 Dec - Thu, 14 Jan

11:30 - 13:56DUB Dublin-EYW Key West

31h 26m1 stop Philadelphia

17:32 - 08:30EYW Key West-DUB Dublin

9h 58m1 stop Philadelphia

€689American Airlines

Mon, 14 Dec - Thu, 14 Jan

11:30 - 13:56DUB Dublin-EYW Key West

31h 26m1 stop Philadelphia

17:32 - 08:30EYW Key West-DUB Dublin

9h 58m1 stop Philadelphia

€690American Airlines

Booking Insights

Price, demand, and travel trends for flights to Key West

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

What is the cheapest flight to Key West?: Dublin to Key West is the cheapest route at €665 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.
How much is a flight to Key West? Average and cheapest price for all return flights to Key West from each origin found by users searching on KAYAK in the last 12 months.: On average, a return flight from Ireland to Key West costs €887, based on KAYAK data over the past 12 months. Return fares from Dublin average €760.
What is the cheapest time of day to fly to Key West? Average price for all return flights depending on time of departure, seen by users on KAYAK in the last 12 months.: Morning flights to Key West are the cheapest at €888 return on average. Morning flights are the most expensive at €888.
What is a good deal for flights to Key West?: Flights under €789 are considered a good deal. 25% of KAYAK users found return flights to Key West at or below these prices, with the lowest fares from:
•Dublin €671.

Find deals

Cheapest flight	€665

Round-trip flight from Dublin to Key West

When to book flights to Key West

Are your dates flexible? Find out the best times to travel to Key West based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Key West based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

How do I know if a flight to Key West is a good deal?
A good deal on a flight to Key West is around €789 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.
What is the difference between the most popular and the most frequent airline at Key West?
Delta operates the most flights from Ireland to Key West at 0 per week, and for this route Delta is also the airline most often selected by KAYAK users searching for flights from Ireland to Key West. The two are sometimes different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.
Which airlines should I consider for flights to Key West?
Delta is the most popular airline for KAYAK users flying to Key West and has the best on-time record at the destination's main airport.

For flights to Key West, a good return fare is around €789. If you find a fare below that, you're getting a strong deal.
Before you book:

• Check the route's typical price range so you can spot a deal.
• Confirm baggage fees and seat selection costs on budget carriers.
• Verify whether you need any travel documents beyond an ID.
• Pick a departure airport, since your nearest may not be the cheapest origin.

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€665 Find Cheap Flights to Key West – Compare and Save

Everything you should know

Cheap Flights to Key West

Recent return flight deals to Key West

Recent one-way flight deals to Key West

Recent last minute flight deals to Key West

All return flight deals to Key West

Price, demand, and travel trends for flights to Key West

What is the cheapest flight to Key West?

How much is a flight to Key West?

What is the cheapest time of day to fly to Key West?

What is a good deal for flights to Key West?

What are the most popular airlines flying to Key West?

Key details for flights to Key West

Cheapest flight

When to book flights to Key West

Your questions about flights to Key West, answered

Your guide to booking Key West flights

More options for your flight to Key West

Complete your trip to Key West with a hotel stay or car hire

Information on the airport you'll fly into in Key West

Cabin class types available on flights to Key West

Flights from local origins to Key West

Flights to other popular destinations