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San Juan

$236+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
GJT — SJU
Aug 25 — Sep 11
Tue 8/25
Tue 9/1
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 July 26, 2026.

This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:03 pm
GJT
-
SJU
2 stops14h 17m
American Airlines
Wed 10/146:20 am
SJU
-
GJT
2 stops17h 16m
American Airlines
Deal found 7/25$472
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 10/87:00 am
GJT
-
SJU
1 stop8h 38m
United Airlines
Wed 10/142:00 pm
SJU
-
GJT
1 stop10h 06m
United Airlines
Deal found 7/25$474
This American Airlines deal was found by Cheapflights users on 7/24. 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.
Wed 12/24:26 pm
GJT
-
SJU
2 stops15h 09m
American Airlines
Sat 12/126:42 pm
SJU
-
GJT
2 stops18h 26m
American Airlines
Deal found 7/24$477
This United Airlines deal was found by Cheapflights users on 7/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:00 am
GJT
-
SJU
2 stops14h 50m
United Airlines
Thu 8/271:00 am
SJU
-
GJT
2 stops13h 38m
United Airlines
Deal found 7/21$526
This American Airlines deal was found by Cheapflights users on 7/21. 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.
Fri 9/44:42 pm
GJT
-
SJU
2 stops19h 56m
American Airlines
Sun 9/134:19 pm
SJU
-
GJT
2 stops21h 08m
American Airlines
Deal found 7/21$574
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 8/83:15 pm
GJT
-
SJU
2 stops12h 14m
United Airlines
Mon 8/102:05 am
SJU
-
GJT
2 stops12h 33m
United Airlines
Deal found 7/25$621
This United Airlines deal was found by Cheapflights users on 7/22. 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 9/43:12 pm
GJT
-
SJU
1 stop24h 26m
United Airlines
Sat 9/121:00 am
SJU
-
GJT
2 stops13h 38m
United Airlines
Deal found 7/22$720

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 July 26, 2026.

Round-trip from

$472
(American Airlines)

One-way from

$236
(American Airlines)
From Grand Junction Regnl to San Juan
Search Deals
One-way flight from Grand Junction Regnl to San Juan
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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 July 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

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Thu 10/1

11:50 am-9:24 am

2 stops19h 34m

San Juan Luis Munoz Marin Intl

Wed 10/7

12:13 pm-9:36 pm

2 stops11h 23m

$472

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Thu 10/8

7:03 pm-11:20 am

2 stops14h 17m

San Juan Luis Munoz Marin Intl

Mon 10/12

6:00 am-10:26 pm

1 stop18h 26m

$472

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Tue 8/25

5:30 am-8:38 pm

2 stops13h 08m

San Juan Luis Munoz Marin Intl

Thu 8/27

1:00 am-2:37 pm

2 stops15h 37m

$526

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Fri 9/4

4:42 pm-2:38 pm

2 stops19h 56m

San Juan Luis Munoz Marin Intl

Sun 9/13

4:19 pm-11:27 am

2 stops21h 08m

$574

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Wed 12/2

4:26 pm-10:35 am

2 stops15h 09m

San Juan Luis Munoz Marin Intl

Sat 12/12

7:00 am-3:56 pm

1 stop11h 56m

$581
Quickest round-trip

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Sat 8/8

3:15 pm-5:29 am

2 stops12h 14m

San Juan Luis Munoz Marin Intl

Mon 8/10

2:05 am-12:38 pm

2 stops12h 33m

$621
Cheapest one-way
Quickest one-way

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Tue 10/6

7:00 am-5:38 pm

1 stop8h 38m

$263

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Fri 10/9

6:06 pm-2:44 pm

2 stops18h 38m

$436

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/21

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 July 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
10,040 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
10,040 reviews
United Airlines
7.4
Good
10,040 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.1
Good
11,844 reviews
United Airlines
7.4
Good
10,040 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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 13h 08m. Fly via American Airlines or United Airlines to get the fastest option. Airlines will cover a distance of 2907 mi. This flight may include one or multiple stops.

  • 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.

  • 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 July 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$345Average$487FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$435Average$690FlexibilityNo cancel feeOn-time69%

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