$795+ Cheap flights from Missouri to San Sebastian (EAS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EAS
Jan 3 — Jan 101
1 adult, Economy
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1. Tell us where you want to go
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Missouri to San Sebastian
Best flights from Missouri to San SebastianDiscover carefully curated flight deals from Missouri to San Sebastian that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 4, 2025.
Discover carefully curated flight deals from Missouri to San Sebastian that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 4, 2025.
This Iberia deal was found by Cheapflights users on 12/2. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/69:33 amSTL - EAS
2 stops28h 17mIberia
Tue 2/109:30 pmEAS - STL
2 stops32h 29mIberia
Deal found 12/2![Iberia logo]()
$795
Find flight deals from Missouri to San Sebastian
Keep the following information in mind while searching for Missouri to San Sebastian flight deals. Data was last updated December 4, 2025.
Most accurate provider | Expedia 2 stars |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $757 (American Airlines) |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated December 4, 2025.
Use the filters below to find and compare flights from Missouri to San Sebastian that are best for you.
Fly from
Missouri
Fly to
San Sebastian
Route
Depart
Return
Price
St. LouisSan Sebastian
STL - EAS
STLEAS
Lambert-St Louis
Fri 2/6
9:33 am-8:50 pm
2 stops28h 17m
San Sebastián
Tue 2/10
9:30 pm-10:59 pm
2 stops32h 29m
$795
Best time to book a flight from Missouri to San Sebastian
Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Missouri 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 Missouri to San Sebastian
What is the cheapest time of day to fly from MO to EAS?
Find hourly flight availability from Missouri 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 December 4, 2025.
When flying from Missouri to San Sebastian, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 31% versus a flight in the evening.