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Cheap flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport from £80

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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SJU
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap 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 12 September 2025.

Round-trip from

£165

One-way from

£80

Popular in

December

Cheapest in

September

Average price

£251
United Airlines
  • United Airlines
  • 9/11-19/11
  • 1 total stop
  • 12h 05m total
  • Chicago to San Juan
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United Airlines
  • United Airlines
  • 11/11
  • Nonstop
  • 4h 45m total
  • Chicago to San Juan
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£13 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£8 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from O'Hare Intl to Luis Munoz Marin Intl

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 12 September 2025.

Sun 9/1114:20ORD - SJU
Nonstop4h 40mUnited Airlines
Tue 18/1102:05SJU - ORD
1 stop9h 43mUnited Airlines
Deal found 11/9£165
Wed 12/1115:45ORD - SJU
1 stop6h 50mSouthwest
Wed 19/1105:45SJU - ORD
1 stop7h 25mSouthwest
Deal found 12/9£168
Sat 1/1106:08ORD - SJU
1 stop7h 03mDelta
Tue 4/1107:15SJU - ORD
1 stop11h 26mDelta
Deal found 12/9£186
Sat 1/1114:20ORD - SJU
Nonstop4h 40mUnited Airlines
Mon 3/1102:05SJU - ORD
1 stop9h 00mUnited Airlines
Deal found 12/9£190
Tue 11/1114:20ORD - SJU
Nonstop4h 40mUnited Airlines
Wed 3/1202:05SJU - ORD
1 stop10h 39mUnited Airlines
Deal found 11/9£197
Sat 11/1019:43ORD - SJU
1 stop14h 13mSpirit Airlines
Tue 14/1015:19SJU - ORD
1 stop7h 14mSpirit Airlines
Deal found 10/9£199
Wed 12/1106:05ORD - SJU
2 stops15h 15mSouthwest
Tue 18/1105:45SJU - ORD
1 stop7h 25mSouthwest
Deal found 12/9£216
Wed 12/1114:20ORD - SJU
Nonstop4h 40mUnited Airlines
Tue 18/1102:05SJU - ORD
1 stop9h 43mUnited Airlines
Deal found 12/9£216
Sat 4/1008:34ORD - SJU
1 stop11h 25mJetBlue
Mon 6/1003:03SJU - ORD
1 stop10h 07mJetBlue
Deal found 12/9£222
Fri 3/1013:36ORD - SJU
1 stop10h 11mJetBlue
Mon 6/1003:03SJU - ORD
1 stop10h 07mJetBlue
Deal found 12/9£224

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 12 September 2025.
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

O'Hare Intl

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Sun 18/1

10:40-23:58

1 stop11h 18m

San Juan Luis Munoz Marin Intl

Thu 22/1

15:30-23:54

1 stop10h 24m

£197

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 11/11

14:20-21:00

Nonstop4h 40m

San Juan Luis Munoz Marin Intl

Wed 3/12

02:05-10:44

1 stop10h 39m

£197

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Sun 18/1

10:40-23:58

1 stop11h 18m

San Juan Luis Munoz Marin Intl

Fri 23/1

18:24-23:54

1 stop7h 30m

£197

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Sat 8/11

13:36-00:36

1 stop9h 00m

San Juan Luis Munoz Marin Intl

Tue 18/11

02:05-09:48

1 stop9h 43m

£222

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Wed 4/2

13:00-00:36

1 stop9h 36m

San Juan Luis Munoz Marin Intl

Fri 13/2

08:35-11:57

Nonstop5h 22m

£230

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Sun 16/11

14:20-21:00

Nonstop4h 40m

San Juan Luis Munoz Marin Intl

Fri 21/11

02:05-09:05

1 stop9h 00m

£230

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 11/11

08:55-15:40

Nonstop4h 45m

San Juan Luis Munoz Marin Intl

Tue 18/11

07:45-17:08

1 stop11h 23m

£230

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Sun 9/11

11:15-22:22

1 stop9h 07m

San Juan Luis Munoz Marin Intl

Tue 18/11

02:05-09:48

1 stop9h 43m

£255

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Sun 16/11

07:00-17:20

1 stop8h 20m

San Juan Luis Munoz Marin Intl

Wed 18/3

07:00-17:37

1 stop11h 37m

£262

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 3/3

05:50-17:12

1 stop9h 22m

San Juan Luis Munoz Marin Intl

Tue 10/3

07:00-17:37

1 stop11h 37m

£262

Flights are sorted by cheapest return flights first.

Deals found on 12/9

Showing 1-10 of 21 results
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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 29 August 2025.

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 49 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, April 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 £631). Flying from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport in July is currently the most expensive (average of £1,027). 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 12 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport as you normally would.

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 40m. 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 Spirit Airlines (79%), American Airlines (77%) or Alaska Airlines (77%) 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, April 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 £631). Flying from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport in July is currently the most expensive (average of £1,027). 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

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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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