San Juan

$426+ Cheap flights from Grand Junction (GJT) to San Juan

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
GJT — SJU
Nov 15 — Nov 221
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Find 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 October 16, 2025.

This American Airlines deal was found by Cheapflights users on 10/16. 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 12/510:38 amGJT - SJU
2 stops20h 31mAmerican Airlines
Mon 12/156:42 pmSJU - GJT
2 stops18h 26mAmerican Airlines
Deal found 10/16$426
This United Airlines deal was found by Cheapflights users on 10/15. 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 12/87:15 amGJT - SJU
2 stops12h 07mUnited Airlines
Wed 12/102:25 pmSJU - GJT
1 stop10h 48mUnited Airlines
Deal found 10/15$455
This American Airlines deal was found by Cheapflights users on 10/14. 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 12/810:38 amGJT - SJU
2 stops20h 31mAmerican Airlines
Wed 12/107:00 amSJU - GJT
1 stop12h 02mAmerican Airlines
Deal found 10/14$473
This American Airlines deal was found by Cheapflights users on 10/16. 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 11/204:44 pmGJT - SJU
2 stops14h 26mAmerican Airlines
Wed 11/2611:00 amSJU - GJT
2 stops15h 59mAmerican Airlines
Deal found 10/16$621
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Sat 11/224:44 pmGJT - SJU
2 stops14h 26mAmerican Airlines
Wed 11/2611:00 amSJU - GJT
2 stops15h 59mAmerican Airlines
Deal found 10/16$721
This American Airlines deal was found by Cheapflights users on 10/16. 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.
Sat 11/224:44 pmGJT - SJU
2 stops14h 26mAmerican Airlines
Thu 11/274:56 pmSJU - GJT
2 stops21h 33mAmerican Airlines
Deal found 10/16$776

Cheap 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 October 16, 2025.

Round-trip from

$426
(American Airlines)

Popular in

February

Cheapest in

May

Average price

$688
From Grand Junction Regnl to San Juan
Highest demand for flights based on searches. 7% potential increase in price ($49 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in October 2025

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 October 16, 2025.
Use the filters below to find and compare flights from Grand Junction to San Juan that are best for you.

Fly from

Grand Junction

Fly to

San Juan

Route

Depart

Return

Price

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Fri 12/5

10:38 am-10:09 am

2 stops20h 31m

San Juan Luis Munoz Marin Intl

Mon 12/15

6:42 pm-10:08 am

2 stops18h 26m

$426

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Fri 1/23

12:37 pm-10:48 am

2 stops19h 11m

San Juan Luis Munoz Marin Intl

Sat 1/31

7:00 am-6:19 pm

2 stops14h 19m

$426

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Mon 12/8

7:15 am-10:22 pm

2 stops12h 07m

San Juan Luis Munoz Marin Intl

Wed 12/10

2:25 pm-10:13 pm

1 stop10h 48m

$455

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Thu 1/15

12:37 pm-10:48 am

2 stops19h 11m

San Juan Luis Munoz Marin Intl

Mon 1/26

5:51 pm-11:39 am

2 stops20h 48m

$466

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

Mon 12/8

10:38 am-10:09 am

2 stops20h 31m

San Juan Luis Munoz Marin Intl

Wed 12/10

7:00 am-4:02 pm

1 stop12h 02m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

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

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

Find hourly flight availability from Grand Junction to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

It’s optimal to fly from Grand Junction to San Juan in the evening. By choosing this option you can save up to 54% on the cost of your flight, compared to a flight in the morning.

How much does it cost to fly round-trip from Grand Junction to San Juan?

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 October 16, 2025.
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.

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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 12h 07m. 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. American Airlines is currently priced 46% 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$345Average$487FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$451Average$701FlexibilityNo cancel feeOn-time69%

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