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

Confirm your travel details to search for the latest offers for flights from San Sebastian to Illinois . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

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

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

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.

When did momondo last update prices for flights from San Sebastián Airport to Illinois?

Prices for flights from San Sebastián Airport to Illinois are updated daily.

How old do you have to be to fly from San Sebastián Airport to Illinois?

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 San Sebastián Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$854 Cheap Flights from San Sebastian to Illinois in 2025/26

1 adult

0 bags

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Find the cheapest flights from San Sebastian to Illinois

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:40 pm - 9:15 amEAS-ORD

26h 35m2 stops

8:45 pm - 8:40 amORD-EAS

28h 55m2 stops

$854American Airlines

Find Deal

Wed, Feb 11 - Sun, Feb 15

1:40 pm - 9:02 amEAS-ORD

26h 22m2 stops

6:41 pm - 8:40 amORD-EAS

30h 59m2 stops

$855American Airlines

Find Deal

Wed, Feb 11 - Sun, Feb 15

1:40 pm - 7:49 pmEAS-ORD

37h 09m2 stops

8:45 pm - 8:40 amORD-EAS

28h 55m2 stops

$856American Airlines

Find Deal

Wed, Feb 11 - Sun, Feb 15

9:30 pm - 2:55 pmEAS-ORD

24h 25m1 stop

8:45 pm - 8:40 amORD-EAS

28h 55m2 stops

$864American Airlines

Find Deal

Wed, Feb 11 - Sun, Feb 15

9:20 am - 8:00 pmEAS-ORD

17h 40m2 stops

5:40 pm - 1:00 pmORD-EAS

12h 20m1 stop

$872American Airlines

Find Deal

Wed, Feb 11 - Sun, Feb 15

9:30 pm - 2:55 pmEAS-ORD

24h 25m1 stop

5:40 pm - 1:00 pmORD-EAS

12h 20m1 stop

$877American Airlines

Find Deal

Wed, Feb 11 - Sun, Feb 15

9:30 pm - 2:55 pmEAS-ORD

24h 25m1 stop

8:30 am - 8:40 amORD-EAS

17h 10m2 stops

$878American Airlines

Find Deal

Wed, Feb 11 - Sun, Feb 15

9:30 pm - 2:55 pmEAS-ORD

24h 25m1 stop

5:40 pm - 8:40 amORD-EAS

32h 00m1 stop

$896Iberia

Find Deal

Wed, Feb 11 - Sun, Feb 15

9:30 pm - 2:55 pmEAS-ORD

24h 25m1 stop

5:40 pm - 8:40 amORD-EAS

32h 00m1 stop

$899Iberia

Find Deal

Wed, Feb 11 - Sun, Feb 15

9:20 am - 11:28 pmEAS-STL

21h 08m2 stops

6:58 pm - 8:40 amSTL-EAS

30h 42m2 stops

$1,067American Airlines

Find Deal

Thu, Feb 12 - Sun, Feb 15

American Airlines flights from San Sebastian to Illinois

Our best American Airlines deals on San Sebastian to Illinois flight tickets

American Airlines

Feb 11

EAS1:40 pmSan Sebastián

26h 35m

2 stops

ORD9:15 amChicago O'Hare Intl

Feb 15

ORD8:45 pmChicago O'Hare Intl

28h 55m

2 stops

EAS8:40 amSan Sebastián

$854

Find similar

American Airlines

Feb 11

EAS1:40 pmSan Sebastián

26h 22m

2 stops

ORD9:02 amChicago O'Hare Intl

Feb 15

ORD6:41 pmChicago O'Hare Intl

30h 59m

2 stops

EAS8:40 amSan Sebastián

$855

Find similar

American Airlines

Feb 11

EAS1:40 pmSan Sebastián

37h 09m

2 stops

ORD7:49 pmChicago O'Hare Intl

Feb 15

ORD8:45 pmChicago O'Hare Intl

28h 55m

2 stops

EAS8:40 amSan Sebastián

$856

Find similar

Iberia flights from San Sebastian to Illinois

Our best Iberia deals on San Sebastian to Illinois flight tickets

Iberia

Feb 11

EAS9:30 pmSan Sebastián

24h 25m

1 stop

ORD2:55 pmChicago O'Hare Intl

Feb 15

ORD5:40 pmChicago O'Hare Intl

32h 00m

1 stop

EAS8:40 amSan Sebastián

$896

Find similar

Iberia

Feb 11

EAS9:30 pmSan Sebastián

24h 25m

1 stop

ORD2:55 pmChicago O'Hare Intl

Feb 15

ORD5:40 pmChicago O'Hare Intl

32h 00m

1 stop

EAS8:40 amSan Sebastián

$899

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Wed 2/11

1:40 pm-9:15 am

2 stops26h 35m

Chicago O'Hare Intl

Sun 2/15

8:45 pm-8:40 am

2 stops28h 55m

$854

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Wed 2/11

1:40 pm-9:02 am

2 stops26h 22m

Chicago O'Hare Intl

Sun 2/15

6:41 pm-8:40 am

2 stops30h 59m

$855

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Wed 2/11

1:40 pm-7:49 pm

2 stops37h 09m

Chicago O'Hare Intl

Sun 2/15

8:45 pm-8:40 am

2 stops28h 55m

$856

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Wed 2/11

9:30 pm-2:55 pm

1 stop24h 25m

Chicago O'Hare Intl

Sun 2/15

8:45 pm-8:40 am

2 stops28h 55m

$864

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Wed 2/11

9:20 am-8:00 pm

2 stops17h 40m

Chicago O'Hare Intl

Sun 2/15

5:40 pm-1:00 pm

1 stop12h 20m

$872

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Wed 2/11

9:30 pm-2:55 pm

1 stop24h 25m

Chicago O'Hare Intl

Sun 2/15

5:40 pm-1:00 pm

1 stop12h 20m

$877

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Wed 2/11

9:30 pm-2:55 pm

1 stop24h 25m

Chicago O'Hare Intl

Sun 2/15

8:30 am-8:40 am

2 stops17h 10m

$878

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Wed 2/11

9:30 pm-2:55 pm

1 stop24h 25m

Chicago O'Hare Intl

Sun 2/15

5:40 pm-8:40 am

1 stop32h 00m

$896

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Wed 2/11

9:30 pm-2:55 pm

1 stop24h 25m

Chicago O'Hare Intl

Sun 2/15

5:40 pm-8:40 am

1 stop32h 00m

$899

San SebastianSt. Louis

EAS - STL

EASSTL

San Sebastián

Thu 2/12

9:20 am-11:28 pm

2 stops21h 08m

Lambert-St Louis

Sun 2/15

6:58 pm-8:40 am

2 stops30h 42m

$1,067

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap San Sebastian to Illinois flight deals and tips

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

Fastest flight time	36h 34m
Direct flights	None

The fastest flight from San Sebastian to Illinois takes 36h 34m

There are no direct flights from San Sebastian to Illinois. There are no popular flight routes from San Sebastian to Illinois.

Search flight deals

When did momondo last update prices for flights from San Sebastián Airport to Illinois?
Prices for flights from San Sebastián Airport to Illinois are updated daily.
How old do you have to be to fly from San Sebastián Airport to Illinois?
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 San Sebastián Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

How do I get Price Alerts for flights from San Sebastian to Illinois?
Confirm your travel details to search for the latest offers for flights from San Sebastian to Illinois. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from San Sebastian to Illinois with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
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.

Why use momondo?

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

Finding the right flight to Illinois from San Sebastian 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 Illinois quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Illinois from San Sebastian with this policy.

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

momondo provides multiple filters to help you find the best flight to Illinois from San Sebastian. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of San Sebastian to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.