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$347+ Cheap flights from Key Largo, FL to San Sebastian (EAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — EAS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Key Largo to San Sebastian

Keep the following information in mind while searching for Key Largo to San Sebastian flight deals. Data was last updated June 12, 2025.

Round-trip from

$597
(Iberia)

One-way from

$347
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$848
From Key Largo to San Sebastián
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One-way flight from Key Largo to San Sebastián
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Highest demand for flights based on searches. 23% potential increase in price ($261 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($76 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Key Largo to San Sebastian

Cheapest flights from Key Largo to San Sebastian
Explore the most affordable flight options available from Key Largo to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/213:15 pmMIA - EAS
1 stop11h 25mAmerican Airlines
Fri 11/79:20 amEAS - MIA
2 stops17h 00mAmerican Airlines
Deal found 6/12$577
This Travelocity deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/294:55 pmMIA - EAS
1 stop14h 05mIberia
Sat 10/49:30 pmEAS - MIA
2 stops28h 30mIberia
Deal found 6/12$579
This Trip.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/294:55 pmMIA - EAS
1 stop14h 05mMultiple Airlines
Sat 10/49:30 pmEAS - MIA
1 stop21h 45mMultiple Airlines
Deal found 6/12$798

Cheapflights Fare Finder

Customize your flight search to find flights from Key Largo to San Sebastian 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Key Largo to San Sebastian that are best for you.

Fly from

Key Largo

Fly to

San Sebastian

Route

Depart

Return

Price

MiamiSan Sebastian

MIA - EAS

MIAEAS

Miami

Tue 10/21

3:15 pm-8:40 am

1 stop11h 25m

San Sebastián

Fri 11/7

9:20 am-8:20 pm

2 stops17h 00m

$577

MiamiSan Sebastian

MIA - EAS

MIAEAS

Miami

Mon 9/29

4:55 pm-1:00 pm

1 stop14h 05m

San Sebastián

Sat 10/4

9:30 pm-8:00 pm

2 stops28h 30m

$579

MiamiSan Sebastian

MIA - EAS

MIAEAS

Miami

Mon 9/29

4:55 pm-1:00 pm

1 stop14h 05m

San Sebastián

Sat 10/4

9:30 pm-1:15 pm

1 stop21h 45m

$798

MiamiSan Sebastian

MIA - EAS

MIAEAS

Miami

Wed 8/13

3:55 am-8:30 am

2 stops22h 35m

$347

MiamiSan Sebastian

MIA - EAS

MIAEAS

Miami

Mon 9/29

4:55 pm-1:00 pm

1 stop14h 05m

$469

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Key Largo to San Sebastian

Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Key Largo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Key Largo to San Sebastian

What is the cheapest time of day to fly from KE9 to EAS?

Find hourly flight availability from Key Largo to San Sebastian. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Key Largo to San Sebastian as you normally would.

Reviews of airlines servicing San Sebastian

Get insights into the airlines that provide service to San Sebastian. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Sebastian. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Key Largo to San Sebastian, such as American Airlines and Iberia. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Food

6.5

Crew

8.0

Comfort

7.2

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Bama,Oct 2024

MIA - PNS

I paid for first class and it was nothing more than a 36" long curtain between first and business class, nothing extra, nothing fancy and a waste of money. Would have been better off just getting a regular seat and saving the money. Also had one of my eardrums rupture because of the take off and had to sit in uncomfortable pain with a bleeding ear the entire flight. Had to go to the doctor and it's been 5 days and still having difficulty hearing like it just happened.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Food

6.5

Crew

8.0

Comfort

7.2

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Bama,Oct 2024

MIA - PNS

I paid for first class and it was nothing more than a 36" long curtain between first and business class, nothing extra, nothing fancy and a waste of money. Would have been better off just getting a regular seat and saving the money. Also had one of my eardrums rupture because of the take off and had to sit in uncomfortable pain with a bleeding ear the entire flight. Had to go to the doctor and it's been 5 days and still having difficulty hearing like it just happened.
Iberia
7.0
Good
2,776 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Food

6.5

Crew

8.0

Comfort

7.2

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Bama,Oct 2024

MIA - PNS

I paid for first class and it was nothing more than a 36" long curtain between first and business class, nothing extra, nothing fancy and a waste of money. Would have been better off just getting a regular seat and saving the money. Also had one of my eardrums rupture because of the take off and had to sit in uncomfortable pain with a bleeding ear the entire flight. Had to go to the doctor and it's been 5 days and still having difficulty hearing like it just happened.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to San Sebastian. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Sebastian from Key Largo?

    Most people fly into San Sebastián (EAS) if they book a flight to San Sebastian from Key Largo. On average, San Sebastián has 0 inbound flights from Key Largo per day from 2 airlines. San Sebastián is conveniently located just 9.7 mi from San Sebastian’s city center.

  • Can I find deals for flights from Key Largo to San Sebastian that include hotel bookings?

    Yes. In addition to deals on Key Largo to San Sebastian flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key Largo to San Sebastian?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Key Largo to San Sebastian.

  • Can I find deals for business class flights from Key Largo to San Sebastian?

    Yes. Cheapflights offers flight deals from Key Largo to San Sebastian by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 2 airlines flying from Key Largo to San Sebastian

Discover the top 2 airlines that operate flights from Key Largo to San Sebastian. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$585Average$847FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$666Average$806FlexibilityNo cancel feeOn-time71%

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