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.

$803 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

1:40 pm - 10:43 amEAS-ORD

52h 03m2 stops

4:45 pm - 8:50 pmORD-EAS

21h 05m1 stop

$803Iberia

Find Deal

Sun, Nov 9 - Sun, Nov 16

9:20 am - 2:30 pmEAS-ORD

12h 10m1 stop

4:45 pm - 1:00 pmORD-EAS

13h 15m1 stop

$812Iberia

Find Deal

Sun, Nov 9 - Sun, Nov 16

9:20 am - 9:05 pmEAS-ORD

18h 45m2 stops

11:48 am - 8:40 amORD-EAS

13h 52m2 stops

$832American Airlines

Find Deal

Sun, Nov 9 - Sun, Nov 16

1:40 pm - 2:30 pmEAS-ORD

31h 50m1 stop

2:50 pm - 1:00 pmORD-EAS

15h 10m2 stops

$869American Airlines

Find Deal

Sun, Nov 9 - Sun, Nov 16

9:20 am - 2:30 pmEAS-ORD

12h 10m1 stop

4:45 pm - 8:50 pmORD-EAS

21h 05m1 stop

$876American Airlines

Find Deal

Sun, Nov 9 - Sun, Nov 16

9:20 am - 11:54 pmEAS-ORD

21h 34m2 stops

6:35 pm - 8:40 amORD-EAS

31h 05m2 stops

$888American Airlines

Find Deal

Fri, Feb 13 - Tue, Feb 17

9:20 am - 12:21 pmEAS-ORD

34h 01m2 stops

10:07 am - 8:40 amORD-EAS

15h 33m2 stops

$889American Airlines

Find Deal

Fri, Feb 13 - Tue, Feb 17

9:20 am - 10:01 pmEAS-ORD

19h 41m2 stops

4:45 pm - 8:40 amORD-EAS

32h 55m1 stop

$897American Airlines

Find Deal

Fri, Feb 13 - Tue, Feb 17

9:30 pm - 1:50 pmEAS-ORD

23h 20m2 stops

4:45 pm - 8:40 amORD-EAS

32h 55m1 stop

$936Iberia

Find Deal

Fri, Feb 13 - Tue, Feb 17

2:05 pm - 6:25 pmEAS-ORD

35h 20m3 stops

8:25 pm - 1:30 pmORD-EAS

34h 05m3 stops

$1,152Multiple Airlines

Find Deal

Sun, Nov 9 - Sun, Nov 16

Iberia flights from San Sebastian to Illinois

Our best Iberia deals on San Sebastian to Illinois flight tickets

Iberia

Nov 9

EAS1:40 pmSan Sebastián

52h 03m

2 stops

ORD10:43 amChicago O'Hare Intl

Nov 16

ORD4:45 pmChicago O'Hare Intl

21h 05m

1 stop

EAS8:50 pmSan Sebastián

$803

Find similar

Iberia

Nov 9

EAS9:20 amSan Sebastián

12h 10m

1 stop

ORD2:30 pmChicago O'Hare Intl

Nov 16

ORD4:45 pmChicago O'Hare Intl

13h 15m

1 stop

EAS1:00 pmSan Sebastián

$812

Find similar

Iberia

Feb 13

EAS9:30 pmSan Sebastián

23h 20m

2 stops

ORD1:50 pmChicago O'Hare Intl

Feb 17

ORD4:45 pmChicago O'Hare Intl

32h 55m

1 stop

EAS8:40 amSan Sebastián

$936

Find similar

American Airlines flights from San Sebastian to Illinois

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

American Airlines

Nov 9

EAS9:20 amSan Sebastián

18h 45m

2 stops

ORD9:05 pmChicago O'Hare Intl

Nov 16

ORD11:48 amChicago O'Hare Intl

13h 52m

2 stops

EAS8:40 amSan Sebastián

$832

Find similar

American Airlines

Nov 9

EAS1:40 pmSan Sebastián

31h 50m

1 stop

ORD2:30 pmChicago O'Hare Intl

Nov 16

ORD2:50 pmChicago O'Hare Intl

15h 10m

2 stops

EAS1:00 pmSan Sebastián

$869

Find similar

American Airlines

Nov 9

EAS9:20 amSan Sebastián

12h 10m

1 stop

ORD2:30 pmChicago O'Hare Intl

Nov 16

ORD4:45 pmChicago O'Hare Intl

21h 05m

1 stop

EAS8:50 pmSan Sebastián

$876

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Sun 11/9

1:40 pm-10:43 am

2 stops52h 03m

Chicago O'Hare Intl

Sun 11/16

4:45 pm-8:50 pm

1 stop21h 05m

$803

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Sun 11/9

9:20 am-2:30 pm

1 stop12h 10m

Chicago O'Hare Intl

Sun 11/16

4:45 pm-1:00 pm

1 stop13h 15m

$812

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Sun 11/9

9:20 am-9:05 pm

2 stops18h 45m

Chicago O'Hare Intl

Sun 11/16

11:48 am-8:40 am

2 stops13h 52m

$832

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Sun 11/9

1:40 pm-2:30 pm

1 stop31h 50m

Chicago O'Hare Intl

Sun 11/16

2:50 pm-1:00 pm

2 stops15h 10m

$869

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Sun 11/9

9:20 am-2:30 pm

1 stop12h 10m

Chicago O'Hare Intl

Sun 11/16

4:45 pm-8:50 pm

1 stop21h 05m

$876

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Fri 2/13

9:20 am-11:54 pm

2 stops21h 34m

Chicago O'Hare Intl

Tue 2/17

6:35 pm-8:40 am

2 stops31h 05m

$888

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Fri 2/13

9:20 am-12:21 pm

2 stops34h 01m

Chicago O'Hare Intl

Tue 2/17

10:07 am-8:40 am

2 stops15h 33m

$889

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Fri 2/13

9:20 am-10:01 pm

2 stops19h 41m

Chicago O'Hare Intl

Tue 2/17

4:45 pm-8:40 am

1 stop32h 55m

$897

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Fri 2/13

9:30 pm-1:50 pm

2 stops23h 20m

Chicago O'Hare Intl

Tue 2/17

4:45 pm-8:40 am

1 stop32h 55m

$936

San SebastianChicago

EAS - ORD

EASORD

San Sebastián

Sun 11/9

2:05 pm-6:25 pm

3 stops35h 20m

Chicago O'Hare Intl

Sun 11/16

8:25 pm-1:30 pm

3 stops34h 05m

$1,152

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

Direct flights	None

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.