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Cheap flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport from £118

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SJU
22 Apr — 29 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from O'Hare Intl to Luis Munoz Marin Intl

Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl to Luis Munoz Marin Intl
Explore the most affordable flight options available from O'Hare Intl to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 March 2026.

Tue 7/416:34
ORD
-
SJU
1 stop7h 18m
Frontier
Thu 9/406:00
SJU
-
ORD
1 stop9h 42m
Frontier
Deal found 19/3£183
Mon 11/508:00
ORD
-
SJU
Nonstop4h 42m
Spirit Airlines
Fri 15/514:37
SJU
-
ORD
Nonstop5h 13m
Spirit Airlines
Deal found 23/3£205
Fri 3/420:56
ORD
-
SJU
Nonstop4h 33m
Spirit Airlines
Mon 6/401:29
SJU
-
ORD
Nonstop5h 16m
Spirit Airlines
Deal found 20/3£232
Wed 22/411:19
ORD
-
SJU
1 stop10h 53m
Delta
Wed 29/414:45
SJU
-
ORD
1 stop10h 14m
Delta
Deal found 20/3£237
Mon 13/414:38
ORD
-
SJU
Nonstop4h 56m
United Airlines
Wed 15/407:40
SJU
-
ORD
Nonstop5h 13m
United Airlines
Deal found 20/3£245
Sun 12/414:38
ORD
-
SJU
Nonstop4h 56m
United Airlines
Wed 15/415:56
SJU
-
ORD
Nonstop5h 19m
United Airlines
Deal found 20/3£252
Sat 25/414:38
ORD
-
SJU
Nonstop4h 56m
United Airlines
Tue 5/515:56
SJU
-
ORD
Nonstop5h 19m
United Airlines
Deal found 21/3£253
Sat 18/714:38
ORD
-
SJU
Nonstop4h 56m
United Airlines
Wed 22/707:40
SJU
-
ORD
Nonstop5h 13m
United Airlines
Deal found 20/3£259
Tue 7/414:38
ORD
-
SJU
Nonstop4h 56m
United Airlines
Wed 15/407:40
SJU
-
ORD
Nonstop5h 13m
United Airlines
Deal found 22/3£260
Wed 8/414:38
ORD
-
SJU
Nonstop4h 56m
United Airlines
Thu 9/407:40
SJU
-
ORD
Nonstop5h 13m
United Airlines
Deal found 19/3£263
Wed 6/514:38
ORD
-
SJU
Nonstop4h 56m
United Airlines
Mon 11/501:00
SJU
-
ORD
1 stop8h 43m
United Airlines
Deal found 18/3£268
Wed 6/514:38
ORD
-
SJU
Nonstop4h 56m
United Airlines
Sun 10/501:00
SJU
-
ORD
1 stop8h 43m
United Airlines
Deal found 18/3£270

Find flight deals from O'Hare Intl to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 23 March 2026.

Round-trip from

£183

One-way from

£118

Popular in

December

Cheapest in

September

Average price

£326
Frontier
  • Frontier
  • 7/4-9/4
  • 2 total stops
  • 17h 00m total
  • Chicago to San Juan
Search Deals
Delta
  • Delta
  • 6/8
  • 1 total stop
  • 7h 17m total
  • Chicago to San Juan
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£30 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from O'Hare Intl to Luis Munoz Marin Intl 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 858,174 searches. Data last updated 23 March 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

Cheapest return flight

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 21/4

11:19-20:24

1 stop8h 05m

San Juan Luis Munoz Marin Intl

Sat 25/4

06:15-16:42

1 stop11h 27m

£274

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Mon 4/5

16:15-10:35

2 stops17h 20m

San Juan Luis Munoz Marin Intl

Thu 28/5

20:40-12:50

2 stops17h 10m

£297

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Mon 27/4

08:49-14:44

Nonstop4h 55m

San Juan Luis Munoz Marin Intl

Mon 4/5

15:56-20:15

Nonstop5h 19m

£340

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 7/4

14:38-20:34

Nonstop4h 56m

San Juan Luis Munoz Marin Intl

Wed 15/4

07:40-11:53

Nonstop5h 13m

£343

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 7/4

14:38-20:34

Nonstop4h 56m

San Juan Luis Munoz Marin Intl

Thu 9/4

07:40-11:53

Nonstop5h 13m

£346
Fastest return journey

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Fri 18/9

08:55-14:44

Nonstop4h 49m

San Juan Luis Munoz Marin Intl

Mon 21/9

15:56-20:05

Nonstop5h 09m

£365

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Wed 29/4

14:38-20:34

Nonstop4h 56m

San Juan Luis Munoz Marin Intl

Mon 4/5

07:40-11:53

Nonstop5h 13m

£371

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Fri 8/5

16:15-08:55

2 stops15h 40m

San Juan Luis Munoz Marin Intl

Sun 10/5

06:25-15:30

2 stops10h 05m

£383

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 21/4

11:55-23:40

2 stops10h 45m

San Juan Luis Munoz Marin Intl

Mon 27/4

20:40-12:50

2 stops17h 10m

£391

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Mon 13/4

14:38-20:34

Nonstop4h 56m

San Juan Luis Munoz Marin Intl

Fri 17/4

15:56-20:15

Nonstop5h 19m

£391

Flights are sorted by cheapest return flights first.

Deals found on 22/3

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from O'Hare Intl to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from O'Hare Intl with our price prediction graph.
Estimated return 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 Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a return flight from O'Hare Intl to Luis Munoz Marin Intl. Price data was last updated on 13 March 2026.

The price you pay for your flight from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 40 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport (average of £93). Flying from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £168). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to SJU?

Find hourly flight availability from O'Hare Intl to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 March 2026.

Unlike at midday, when flights are generally more expensive, you can save up to 89% on flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport by exploring options for tickets in the afternoon.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    There are many flights that can get you from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport in 4h 56m. Fly via United Airlines or Delta to get the fastest option. The distance from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport is about 2073 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Consider Qatar Airways (92%), Alaska Airlines (88%) or American Airlines (87%) when booking your flight. These represent the most reliable airlines when flying from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport.

  • Can I find deals for flights from O'Hare Intl to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Luis Munoz Marin Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Luis Munoz Marin Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Luis Munoz Marin Intl.

  • Can I find deals for business class flights from O'Hare Intl to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Luis Munoz Marin Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport (average of £93). Flying from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £168). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Bayamón

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from O'Hare Intl to Luis Munoz Marin Intl.

Can Cheapflights find flights from O'Hare Intl to Luis Munoz Marin Intl with no change fees?

Yes! Cheapflights helps users easily find flights from O'Hare Intl to Luis Munoz Marin Intl with no change fees.

Can Cheapflights notify me if prices for flights from O'Hare Intl to Luis Munoz Marin Intl become cheaper?

Not ready to book yet? You can track prices for flights from O'Hare Intl to Luis Munoz Marin Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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