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Cheap flights from Chicago O'Hare Intl Airport to San Juan from £77

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to San Juan departing on 22/4. 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 Chicago O'Hare Intl Airport to San Juan

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
14:38 - 20:34
ORD
-
SJU
4h 56mdirect
United Airlines Logo
07:40 - 11:53
SJU
-
ORD
5h 13mdirect
£173United Airlines
Fri, 1 May - Tue, 5 May
United Airlines Logo
14:38 - 20:34
ORD
-
SJU
4h 56mdirect
United Airlines Logo
07:40 - 11:53
SJU
-
ORD
5h 13mdirect
£181United Airlines
Tue, 19 May - Tue, 2 Jun
United Airlines Logo
08:55 - 15:40
ORD
-
SJU
4h 45mdirect
United Airlines Logo
08:30 - 11:52
SJU
-
ORD
5h 22mdirect
£188United Airlines
Tue, 3 Mar - Sat, 7 Mar
United Airlines Logo
14:38 - 20:34
ORD
-
SJU
4h 56mdirect
United Airlines Logo
07:40 - 11:53
SJU
-
ORD
5h 13mdirect
£195United Airlines
Tue, 26 May - Tue, 2 Jun
United Airlines Logo
14:38 - 20:34
ORD
-
SJU
4h 56mdirect
United Airlines Logo
07:40 - 11:53
SJU
-
ORD
5h 13mdirect
£197United Airlines
Fri, 15 May - Fri, 29 May
United Airlines Logo
14:20 - 21:00
ORD
-
SJU
4h 40mdirect
United Airlines Logo
08:30 - 11:52
SJU
-
ORD
5h 22mdirect
£199United Airlines
Wed, 18 Feb - Wed, 25 Feb
United Airlines Logo
14:20 - 21:00
ORD
-
SJU
4h 40mdirect
United Airlines Logo
08:30 - 11:52
SJU
-
ORD
5h 22mdirect
£203United Airlines
Mon, 16 Feb - Fri, 20 Feb
United Airlines Logo
14:38 - 20:34
ORD
-
SJU
4h 56mdirect
United Airlines Logo
07:40 - 11:53
SJU
-
ORD
5h 13mdirect
£210United Airlines
Fri, 1 May - Mon, 4 May
United Airlines Logo
08:55 - 15:40
ORD
-
SJU
4h 45mdirect
United Airlines Logo
07:30 - 11:52
SJU
-
ORD
5h 22mdirect
£215United Airlines
Mon, 2 Mar - Tue, 10 Mar
United Airlines Logo
14:38 - 20:34
ORD
-
SJU
4h 56mdirect
United Airlines Logo
07:40 - 11:53
SJU
-
ORD
5h 13mdirect
£219United Airlines
Tue, 26 May - Tue, 2 Jun

United Airlines flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
8 May
ORD14:38Chicago O'Hare Intl
4h 56m
SJU20:34San Juan Luis Munoz Marin Intl
10 May
SJU07:40San Juan Luis Munoz Marin Intl
5h 13m
ORD11:53Chicago O'Hare Intl
£173
United Airlines
19 May
ORD14:38Chicago O'Hare Intl
4h 56m
SJU20:34San Juan Luis Munoz Marin Intl
2 Jun
SJU07:40San Juan Luis Munoz Marin Intl
5h 13m
ORD11:53Chicago O'Hare Intl
£181
United Airlines
3 Mar
ORD08:55Chicago O'Hare Intl
4h 45m
SJU15:40San Juan Luis Munoz Marin Intl
7 Mar
SJU16:52San Juan Luis Munoz Marin Intl
5h 28m
ORD20:20Chicago O'Hare Intl
£188

Delta flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport

Our best Delta deals on Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport flight tickets
Delta
21 Apr
ORD11:19Chicago O'Hare Intl
10h 53m
1 stop
SJU23:12San Juan Luis Munoz Marin Intl
29 Apr
SJU14:34San Juan Luis Munoz Marin Intl
7h 51m
1 stop
ORD21:25Chicago O'Hare Intl
£180
Delta
14 Feb
ORD15:21Chicago O'Hare Intl
6h 37m
1 stop
SJU23:58San Juan Luis Munoz Marin Intl
28 Feb
SJU06:15San Juan Luis Munoz Marin Intl
9h 55m
1 stop
ORD14:10Chicago O'Hare Intl
£195
Delta
11 Feb
ORD14:50Chicago O'Hare Intl
7h 08m
1 stop
SJU23:58San Juan Luis Munoz Marin Intl
17 Feb
SJU07:30San Juan Luis Munoz Marin Intl
11h 19m
1 stop
ORD16:49Chicago O'Hare Intl
£248

momondo Fare Finder

 
Customise your flight search to find flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport 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 279,928 searches. Data last updated 2 February 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Fri 1/5

14:38-20:34

Nonstop4h 56m

San Juan Luis Munoz Marin Intl

Tue 5/5

07:40-11:53

Nonstop5h 13m

£173

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 19/5

14:38-20:34

Nonstop4h 56m

San Juan Luis Munoz Marin Intl

Tue 2/6

07:40-11:53

Nonstop5h 13m

£181

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 3/3

08:55-15:40

Nonstop4h 45m

San Juan Luis Munoz Marin Intl

Sat 7/3

08:30-11:52

Nonstop5h 22m

£188

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 26/5

14:38-20:34

Nonstop4h 56m

San Juan Luis Munoz Marin Intl

Tue 2/6

07:40-11:53

Nonstop5h 13m

£195

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Fri 15/5

14:38-20:34

Nonstop4h 56m

San Juan Luis Munoz Marin Intl

Fri 29/5

07:40-11:53

Nonstop5h 13m

£197

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Wed 18/2

14:20-21:00

Nonstop4h 40m

San Juan Luis Munoz Marin Intl

Wed 25/2

08:30-11:52

Nonstop5h 22m

£199

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Mon 16/2

14:20-21:00

Nonstop4h 40m

San Juan Luis Munoz Marin Intl

Fri 20/2

08:30-11:52

Nonstop5h 22m

£203

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Fri 1/5

14:38-20:34

Nonstop4h 56m

San Juan Luis Munoz Marin Intl

Mon 4/5

07:40-11:53

Nonstop5h 13m

£210

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Mon 2/3

08:55-15:40

Nonstop4h 45m

San Juan Luis Munoz Marin Intl

Tue 10/3

07:30-11:52

Nonstop5h 22m

£215

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 26/5

14:38-20:34

Nonstop4h 56m

San Juan Luis Munoz Marin Intl

Tue 2/6

07:40-11:53

Nonstop5h 13m

£219

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Juan from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel during the month of April, then book flights to San Juan Luis Munoz Marin Intl Airport from Chicago O'Hare Intl Airport during January instead. Flights to San Juan Luis Munoz Marin Intl Airport in January, while not as cheap as those in April, still average around £254.

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around £286 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Chicago O'Hare Intl Airport for as low as £241 on momondo.

How have Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of February 2026, prices for Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport (ORD to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport

Fastest flight time

4h 41m

Direct flights

Every day
The fastest flight from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport takes 4h 41m
Direct flights go from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport every day.
Search flight deals

  • How far is Chicago O'Hare Intl to San Juan Luis Munoz Marin Intl by plane?

    Chicago O'Hare Intl and San Juan Luis Munoz Marin Intl are 2072.5 mi apart from one another. Typically, this will take 4h 41m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The travel and health documents required for your trip to San Juan Luis Munoz Marin Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan Luis Munoz Marin Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?

Travelling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Rio Grande
Carolina
Fajardo
Dorado

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to San Juan?

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

Can I find flights from Chicago to San Juan with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Juan from Chicago with this policy.

How can momondo help me find flights from Chicago to San Juan?

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 Chicago to San Juan.

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

Yes momondo offers price alerts on flights to San Juan from Chicago. 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.

An easier way to manage your San Juan Luis Munoz Marin Intl Airport trip

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Chicago O'Hare Intl Airport flight routes

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Flights from Chicago O'Hare Intl to London Heathrow