Cheap flights from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport
ORD — SJU
7 Mar — 14 Mar1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago O'Hare Intl to San Juan Luis Munoz Marin Intl are usually found in April or January, booked 49 days in advance, depart on a Tuesday or Monday and return on a Monday
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 5 February 2026.
Popular in
December
Cheapest in
April
Average price
C$ 489
Highest demand for flights based on searches. 10% potential increase in price (C$ 87 potential increase over avg. RT price).
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.
ORD-SJU
Estimated round-trip 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
Prices
Airlines
Delays
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 round-trip flight from O'Hare Intl to Luis Munoz Marin Intl. Price data was last updated on 30 January 2026.
To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 C$ 172). Flying from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of C$ 306). 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 5 February 2026.
It’s typically best to fly out from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport in the evening. Doing so could potentially save you 70% on the flight price compared to flying in the afternoon, which is usually more expensive.
Weekly flight availability from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport
Explore weekly flight availability from O'Hare Intl to Luis Munoz Marin Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 5 February 2026.
The most flights from ORD to SJU are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).
How often are flights from Chicago to San Juan delayed?
About 17% of weekly flights between Chicago and San Juan have experienced delays in the past year, with the average delay time being 140 minutes.
What is the most punctual flight time for Chicago to San Juan flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Chicago to San Juan flights?
Over the past year, American Airlines has had the lowest number of delays on this route, with just 14% of flights being delayed.
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.
What are the most reliable airlines from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport?
Before booking your flight to San Juan Luis Munoz Marin Intl Airport from Chicago O'Hare Intl Airport, check out the most reliable airlines to get you to your destination on time: United Airlines (77%), Air New Zealand (77%), Air Canada( 76%).
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 vacation 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 C$ 172). Flying from Chicago O'Hare Intl Airport to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of C$ 306). 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.
Explore flights to Luis Munoz Marin Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 5 February 2026.
Browse through other flights departing from O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on 5 February 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from O'Hare Intl to Luis Munoz Marin Intl?
When you search for this flight from O'Hare Intl to Luis Munoz Marin Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to Luis Munoz Marin Intl?
Cheapflights simply makes it quick and affordable to book flights from O'Hare Intl to Luis Munoz Marin Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
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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