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Cheap flights from Missouri to San Sebastian from $901

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 9/23. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Missouri to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
9:35 pm - 8:40 amSTL  Lambert-St Louis-EAS San Sebastián
28h 05m2 stops London Heathrow Madrid Barajas
Iberia Logo
9:20 am - 11:43 pmEAS  San Sebastián-STL Lambert-St Louis
21h 23m2 stops Madrid Barajas Dallas/Fort Worth
$901Iberia
Wed, Sep 23 - Wed, Sep 30
British Airways Logo
11:32 am - 8:50 pmSTL  Lambert-St Louis-EAS San Sebastián
26h 18m2 stops Chicago O'Hare Intl Madrid Barajas
British Airways Logo
9:30 pm - 9:30 amEAS  San Sebastián-STL Lambert-St Louis
19h 00m2 stops Madrid Barajas Dallas/Fort Worth
$1,063British Airways
Sun, Nov 15 - Wed, Nov 18
British Airways Logo
9:30 am - 1:00 pmSTL  Lambert-St Louis-EAS San Sebastián
20h 30m2 stops Dallas/Fort Worth Madrid Barajas
British Airways Logo
9:30 pm - 10:25 pmEAS  San Sebastián-STL Lambert-St Louis
31h 55m2 stops Madrid Barajas Dallas/Fort Worth
$1,074British Airways
Mon, Dec 7 - Thu, Dec 10

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British Airways flights from Missouri to San Sebastian

Our best British Airways deals on Missouri to San Sebastian flight tickets
British Airways
Nov 15
STL11:32 amLambert-St Louis
26h 18m
2 stops
EAS8:50 pmSan Sebastián
Nov 18
EAS9:30 pmSan Sebastián
19h 00m
2 stops
STL9:30 amLambert-St Louis
$1,063
British Airways
Dec 7
STL9:30 amLambert-St Louis
20h 30m
2 stops
EAS1:00 pmSan Sebastián
Dec 10
EAS9:30 pmSan Sebastián
31h 55m
2 stops
STL10:25 pmLambert-St Louis
$1,074

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 August 11, 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

St. LouisSan Sebastian

STL Lambert-St Louis - EAS San Sebastián

STLEAS

Lambert-St Louis

Wed 9/23

9:35 pm-8:40 am

2 stops28h 05m

San Sebastián

Wed 9/30

9:20 am-11:43 pm

2 stops21h 23m

$901
Quickest round-trip

St. LouisSan Sebastian

STL Lambert-St Louis - EAS San Sebastián

STLEAS

Lambert-St Louis

Sun 11/15

11:32 am-8:50 pm

2 stops26h 18m

San Sebastián

Wed 11/18

9:30 pm-9:30 am

2 stops19h 00m

$1,063

St. LouisSan Sebastian

STL Lambert-St Louis - EAS San Sebastián

STLEAS

Lambert-St Louis

Mon 12/7

9:30 am-1:00 pm

2 stops20h 30m

San Sebastián

Thu 12/10

9:30 pm-10:25 pm

2 stops31h 55m

$1,074

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

17h 07m

Direct flights

None
The fastest flight from Missouri to San Sebastian takes 17h 07m
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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Frequently asked questions about flying from Missouri to San Sebastian

  • 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.

Frequently asked questions about flying from Missouri to San Sebastian

  • 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

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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1 adult
Thu 9/10
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