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$320+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
GJT — SJU
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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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 agosto 14, 2025.

Round-trip from

$345
(American Airlines)

One-way from

$320
(American Airlines)

Popular in

December

Cheapest in

May
From Grand Junction Regnl to San Juan
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One-way flight from Grand Junction Regnl to San Juan
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Highest demand for flights based on searches. 14% potential increase in price ($115 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($34 potential savings vs. average RT price).
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Find flight deals from Grand Junction to San Juan

Best flights from Grand Junction to San Juan
Discover carefully curated flight deals from Grand Junction to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated agosto 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/13. 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.
lun. 1/264:35 pmGJT - SJU
2 stops18h 00mAmerican Airlines
vie. 1/306:30 amSJU - GJT
2 stops17h 54mAmerican Airlines
Deal found 8/13$345
This United Airlines deal was found by Cheapflights users on 8/13. 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.
mar. 1/137:43 amGJT - SJU
2 stops13h 53mUnited Airlines
vie. 1/237:45 amSJU - GJT
2 stops15h 42mUnited Airlines
Deal found 8/13$435
This American Airlines deal was found by Cheapflights users on 8/13. 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.
jue. 1/1512:45 pmGJT - SJU
2 stops20h 15mAmerican Airlines
lun. 1/266:50 pmSJU - GJT
2 stops19h 40mAmerican Airlines
Deal found 8/13$406
This United Airlines deal was found by Cheapflights users on 8/13. 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.
mar. 1/135:30 amGJT - SJU
2 stops12h 30mUnited Airlines
jue. 1/222:25 pmSJU - GJT
1 stop9h 02mUnited Airlines
Deal found 8/13$435
This American Airlines deal was found by Cheapflights users on 8/13. 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.
mié. 1/144:35 pmGJT - SJU
2 stops16h 25mAmerican Airlines
mié. 1/216:30 amSJU - GJT
2 stops17h 54mAmerican Airlines
Deal found 8/13$406
This United Airlines deal was found by Cheapflights users on 8/13. 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.
lun. 1/267:43 amGJT - SJU
1 stop7h 42mUnited Airlines
vie. 1/308:35 amSJU - GJT
2 stops14h 52mUnited Airlines
Deal found 8/13$435

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 agosto 14, 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

lun. 1/26

4:35 pm-1:35 pm

2 stops18h 00m

San Juan Luis Munoz Marin Intl

vie. 1/30

6:30 am-9:24 pm

2 stops17h 54m

$345

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

jue. 1/15

12:45 pm-12:00 pm

2 stops20h 15m

San Juan Luis Munoz Marin Intl

lun. 1/26

6:50 pm-11:30 am

2 stops19h 40m

$406

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

mié. 1/14

4:35 pm-12:00 pm

2 stops16h 25m

San Juan Luis Munoz Marin Intl

mié. 1/21

6:30 am-9:24 pm

2 stops17h 54m

$406

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

mar. 1/13

7:43 am-12:36 am

2 stops13h 53m

San Juan Luis Munoz Marin Intl

vie. 1/23

7:45 am-8:27 pm

2 stops15h 42m

$435

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

mar. 1/13

5:30 am-9:00 pm

2 stops12h 30m

San Juan Luis Munoz Marin Intl

jue. 1/22

2:25 pm-8:27 pm

1 stop9h 02m

$435

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

lun. 1/26

7:43 am-6:25 pm

1 stop7h 42m

San Juan Luis Munoz Marin Intl

vie. 1/30

8:35 am-8:27 pm

2 stops14h 52m

$435

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

lun. 9/1

5:00 am-10:56 pm

2 stops15h 56m

$320

Grand JunctionSan Juan

GJT - SJU

GJTSJU

Grand Junction Regnl

lun. 9/1

7:20 am-11:57 pm

3 stops14h 37m

$441

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

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 agosto 14, 2025.

It’s optimal to fly from Grand Junction to San Juan at noon. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the morning.

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 agosto 14, 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.
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • 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 $406. Another airline that can offer you cheap pricing is United Airlines. American Airlines is currently priced 39% 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.

  • What is the cheapest month to book a flight from Grand Junction to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Grand Junction to San Juan (average of $254). Flying from Grand Junction to San Juan in June is currently the most expensive (average of $339). 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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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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$406Average$630FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$501Average$689FlexibilityNo cancel feeOn-time69%

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