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San Juan

$402+ Cheap flights from Grand Junction (GJT) to San Juan

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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
GJT — SJU
Jun 25 — Jul 21
Thu 6/25
Thu 7/2
1 adult, Economy
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Cheap flight deals from Grand Junction to San Juan

Cheapest flights from Grand Junction to San Juan
Explore the most affordable flight options available from Grand Junction to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 26, 2026.

This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:43 am
GJT
-
SJU
1 stop7h 42m
United Airlines
Fri 10/301:25 pm
SJU
-
GJT
1 stop9h 02m
United Airlines
Deal found 5/25$486
This American Airlines deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/248:35 am
GJT
-
SJU
2 stops17h 50m
American Airlines
Mon 6/17:15 pm
SJU
-
GJT
2 stops17h 14m
American Airlines
Deal found 5/21$651
This American Airlines deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:54 pm
GJT
-
SJU
2 stops16h 39m
American Airlines
Mon 7/277:14 pm
SJU
-
GJT
2 stops17h 12m
American Airlines
Deal found 5/21$674
This American Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:55 pm
GJT
-
SJU
2 stops16h 02m
American Airlines
Fri 5/2912:44 am
SJU
-
GJT
2 stops12h 51m
American Airlines
Deal found 5/24$675
This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/299:28 am
GJT
-
SJU
2 stops12h 22m
United Airlines
Sat 5/301:00 am
SJU
-
GJT
2 stops11h 41m
United Airlines
Deal found 5/25$680
This American Airlines deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/234:55 pm
GJT
-
SJU
1 stop9h 44m
American Airlines
Wed 7/2910:35 am
SJU
-
GJT
2 stops15h 41m
American Airlines
Deal found 5/21$726
This United Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:33 pm
GJT
-
SJU
2 stops13h 56m
United Airlines
Sun 5/241:40 pm
SJU
-
GJT
1 stop10h 31m
United Airlines
Deal found 5/23$745

Find flight deals from Grand Junction to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Grand Junction (GJT) to San Juan (PR1). 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 May 26, 2026.

Round-trip from

$486
(United Airlines)

One-way from

$402
(American Airlines)

Popular in

May

Cheapest in

December

Average price

$1,382
From Grand Junction Regnl to San Juan
Search Deals
One-way flight from Grand Junction Regnl to San Juan
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($187 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($78 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Grand Junction to San Juan 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 2,558,603 searches. Data last updated May 26, 2026.
Use the filters below to find and compare flights from Grand Junction to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Mon 10/26

7:43 am-5:25 pm

1 stop7h 42m

San Juan Luis Munoz Marin Intl

Fri 10/30

1:25 pm-8:27 pm

1 stop9h 02m

$486

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Mon 7/20

6:54 pm-1:33 pm

2 stops16h 39m

San Juan Luis Munoz Marin Intl

Mon 7/27

7:14 pm-10:26 am

2 stops17h 12m

$674
Cheapest one-way
Quickest one-way

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Thu 6/11

4:56 pm-4:25 am

1 stop9h 29m

$402

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Thu 6/11

12:53 pm-11:29 pm

2 stops32h 36m

$469

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/22

Sorted by cheapest first

Best time to book a flight from Grand Junction to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Grand Junction with our price prediction graph.
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 Grand Junction to San Juan
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated May 26, 2026.
Read reviews from past customers who have flown United Airlines and American Airlines from Grand Junction to San Juan. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,749 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,749 reviews
United Airlines
7.4
Good
9,749 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
American Airlines
7.1
Good
11,629 reviews
United Airlines
7.4
Good
9,749 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from Grand Junction to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Grand Junction to San Juan?

    If you book a flight to San Juan from Grand Junction, you will be flying from Grand Junction Regnl, which is the city’s only airport. Grand Junction Regnl (GJT) is located 4.3 mi from the center of Grand Junction. There are 0 flights from Grand Junction Regnl to San Juan per day from 2 different airlines.

  • How long is the flight from Grand Junction to San Juan?

    There are many flights that can get you from Grand Junction to San Juan in 7h 42m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 2907 mi.

  • What are the cheapest airlines flying from Grand Junction to San Juan round-trip?

    Cheapflights users have booked flights from Grand Junction to San Juan round-trip from $345. Another airline that can offer you cheap pricing is United Airlines. American Airlines is currently priced 49% below the average price you’ll pay for this route.

  • Can I find deals for flights from Grand Junction to San Juan that include hotel bookings?

    Yes. In addition to deals on Grand Junction to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Grand Junction to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Grand Junction to San Juan.

  • Can I find deals for business class flights from Grand Junction to San Juan?

    Yes. Cheapflights offers flight deals from Grand Junction to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 2 airlines flying from Grand Junction to San Juan

Discover the top 2 airlines that operate flights from Grand Junction to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$345Average$487FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$435Average$690FlexibilityNo cancel feeOn-time69%

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