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Cheap flights from Missouri to San Sebastian from $852

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to San Sebastian departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Missouri to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
2:33 pm - 1:00 pm
STL
-
EAS
15h 27m
2 stops
Iberia Logo
9:20 am - 7:33 pm
EAS
-
STL
17h 13m
2 stops
$852Iberia
Tue, Apr 21 - Tue, Apr 28
Iberia Logo
12:27 pm - 1:00 pm
STL
-
EAS
17h 33m
2 stops
Iberia Logo
9:20 am - 7:33 pm
EAS
-
STL
17h 13m
2 stops
$856Iberia
Tue, Apr 21 - Tue, Apr 28
American Airlines Logo
1:29 pm - 1:00 pm
STL
-
EAS
16h 31m
2 stops
American Airlines Logo
9:20 am - 10:19 pm
EAS
-
STL
19h 59m
2 stops
$1,000American Airlines
Fri, May 8 - Fri, May 15
Iberia Logo
8:03 pm - 8:40 am
STL
-
EAS
29h 37m
2 stops
Iberia Logo
9:20 am - 7:30 pm
EAS
-
STL
41h 10m
2 stops
$1,150Iberia
Sun, May 10 - Sun, May 17
British Airways Logo
6:12 pm - 8:50 pm
STL
-
EAS
43h 38m
2 stops
British Airways Logo
9:30 pm - 8:04 pm
EAS
-
STL
29h 34m
2 stops
$1,221British Airways
Sat, Jul 4 - Mon, Jul 13
Multiple Airlines Logo
1:29 pm - 1:00 pm
STL
-
EAS
16h 31m
2 stops
Multiple Airlines Logo
9:20 am - 10:19 pm
EAS
-
STL
19h 59m
2 stops
$1,381Multiple Airlines
Fri, Apr 10 - Tue, Apr 14
Multiple Airlines Logo
2:40 pm - 8:20 am
STL
-
EAS
34h 40m
3 stops
Multiple Airlines Logo
5:55 pm - 6:42 pm
EAS
-
STL
31h 47m
3 stops
$2,477Multiple Airlines
Sat, Jul 4 - Mon, Jul 13
Multiple Airlines Logo
12:10 pm - 5:20 pm
STL
-
EAS
22h 10m
2 stops
Multiple Airlines Logo
5:55 pm - 6:42 pm
EAS
-
STL
31h 47m
3 stops
$2,568Multiple Airlines
Sat, Jul 4 - Mon, Jul 13

Iberia flights from Missouri to San Sebastian

Our best Iberia deals on Missouri to San Sebastian flight tickets
Iberia
Apr 21
STL2:33 pmLambert-St Louis
15h 27m
2 stops
EAS1:00 pmSan Sebastián
Apr 28
EAS9:20 amSan Sebastián
17h 13m
2 stops
STL7:33 pmLambert-St Louis
$852
Iberia
Apr 21
STL12:27 pmLambert-St Louis
17h 33m
2 stops
EAS1:00 pmSan Sebastián
Apr 28
EAS9:20 amSan Sebastián
17h 13m
2 stops
STL7:33 pmLambert-St Louis
$856
Iberia
May 10
STL8:03 pmLambert-St Louis
29h 37m
2 stops
EAS8:40 amSan Sebastián
May 17
EAS9:20 amSan Sebastián
41h 10m
2 stops
STL7:30 pmLambert-St Louis
$1,150

momondo Fare Finder

 
Customize your flight search to find flights from Missouri 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, momondo users made 832,500 searches. Data last updated March 27, 2026.
Use the filters below to find and compare flights from Missouri to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisSan Sebastian

STL - EAS

STLEAS

Lambert-St Louis

Tue 4/21

2:33 pm-1:00 pm

2 stops15h 27m

San Sebastián

Tue 4/28

9:20 am-7:33 pm

2 stops17h 13m

$852

St. LouisSan Sebastian

STL - EAS

STLEAS

Lambert-St Louis

Tue 4/21

12:27 pm-1:00 pm

2 stops17h 33m

San Sebastián

Tue 4/28

9:20 am-7:33 pm

2 stops17h 13m

$856

St. LouisSan Sebastian

STL - EAS

STLEAS

Lambert-St Louis

Fri 5/8

1:29 pm-1:00 pm

2 stops16h 31m

San Sebastián

Fri 5/15

9:20 am-10:19 pm

2 stops19h 59m

$1,000

St. LouisSan Sebastian

STL - EAS

STLEAS

Lambert-St Louis

Sun 5/10

8:03 pm-8:40 am

2 stops29h 37m

San Sebastián

Sun 5/17

9:20 am-7:30 pm

2 stops41h 10m

$1,150

St. LouisSan Sebastian

STL - EAS

STLEAS

Lambert-St Louis

Sat 7/4

6:12 pm-8:50 pm

2 stops43h 38m

San Sebastián

Mon 7/13

9:30 pm-8:04 pm

2 stops29h 34m

$1,221

St. LouisSan Sebastian

STL - EAS

STLEAS

Lambert-St Louis

Fri 4/10

1:29 pm-1:00 pm

2 stops16h 31m

San Sebastián

Tue 4/14

9:20 am-10:19 pm

2 stops19h 59m

$1,381

St. LouisSan Sebastian

STL - EAS

STLEAS

Lambert-St Louis

Sat 7/4

2:40 pm-8:20 am

3 stops34h 40m

San Sebastián

Mon 7/13

5:55 pm-6:42 pm

3 stops31h 47m

$2,477

St. LouisSan Sebastian

STL - EAS

STLEAS

Lambert-St Louis

Sat 7/4

12:10 pm-5:20 pm

2 stops22h 10m

San Sebastián

Mon 7/13

5:55 pm-6:42 pm

3 stops31h 47m

$2,568

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Missouri to San Sebastian flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to San Sebastian

Fastest flight time

20h 26m

Direct flights

None
The fastest flight from Missouri to San Sebastian takes 20h 26m
There are no direct flights from Missouri to San Sebastian. There are no popular flight routes from Missouri to San Sebastian.
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  • When did momondo last update prices for flights from Missouri to San Sebastián Airport?

    Prices for flights from Missouri to San Sebastián Airport were last updated today.

  • How old do you have to be to fly from Missouri to San Sebastián 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 Missouri to San Sebastián Airport.

  • What documentation or ID do you need to fly to San Sebastián Airport?

    The required travel and health documents for your San Sebastián Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Sebastián Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Missouri to San Sebastian?

    Search flight deals from Missouri to San Sebastian. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Missouri to San Sebastian with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near San Sebastian?

Book flights to San Sebastian if you plan to visit one of these locations
Irun
Hondarribia

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to San Sebastian?

Finding the right flight to San Sebastian from Missouri is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Sebastian quick and easy, saving you time and money.

Can I find flights from Missouri to San Sebastian with flexible booking policies on momondo?

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

How can momondo help me find flights from Missouri to San Sebastian?

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 Missouri to San Sebastian.

I’m not ready to book a flight from Missouri to San Sebastian right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Sebastian from Missouri. 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.

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