HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Puerto Rico

$489+ Cheap flights from Eugene (EUG) to Puerto Rico

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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
EUG — SJU
Jul 28 — Aug 41
Tue 7/28
Tue 8/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Eugene to Puerto Rico with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Eugene to Puerto Rico

Cheapest flights from Eugene to Puerto Rico
Explore the most affordable flight options available from Eugene to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 28, 2026.

This Southwest deal was found by Cheapflights users on 6/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:40 am
EUG
-
SJU
2 stops14h 10m
Southwest
Sat 9/198:20 am
SJU
-
EUG
2 stops15h 55m
Southwest
Deal found 6/26$489
This Southwest deal was found by Cheapflights users on 6/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/101:15 pm
EUG
-
SJU
2 stops18h 45m
Southwest
Mon 8/178:55 pm
SJU
-
EUG
2 stops19h 00m
Southwest
Deal found 6/24$496
This Delta deal was found by Cheapflights users on 6/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:45 pm
EUG
-
SJU
2 stops16h 18m
Delta
Tue 9/297:30 am
SJU
-
EUG
2 stops19h 29m
Delta
Deal found 6/25$542
This United Airlines deal was found by Cheapflights users on 6/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:00 am
EUG
-
SJU
2 stops15h 50m
United Airlines
Tue 9/292:00 pm
SJU
-
EUG
1 stop10h 12m
United Airlines
Deal found 6/24$632
This United Airlines deal was found by Cheapflights users on 6/25. 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 8/314:11 pm
EUG
-
SJU
2 stops17h 43m
United Airlines
Wed 9/27:00 am
SJU
-
EUG
2 stops13h 56m
United Airlines
Deal found 6/25$642
This United Airlines deal was found by Cheapflights users on 6/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:00 am
EUG
-
SJU
1 stop9h 38m
United Airlines
Sun 8/161:00 am
SJU
-
EUG
2 stops15h 10m
United Airlines
Deal found 6/24$669
This Southwest deal was found by Cheapflights users on 6/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:10 am
EUG
-
SJU
2 stops15h 00m
Southwest
Tue 7/1410:00 am
SJU
-
EUG
2 stops16h 15m
Southwest
Deal found 6/25$686
This American Airlines deal was found by Cheapflights users on 6/24. 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.
Sat 7/1812:55 pm
EUG
-
SJU
2 stops17h 50m
American Airlines
Fri 7/3110:35 am
SJU
-
EUG
2 stops15h 42m
American Airlines
Deal found 6/24$704
This American Airlines deal was found by Cheapflights users on 6/24. 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 12/103:25 pm
EUG
-
SJU
2 stops15h 10m
American Airlines
Sat 12/191:30 am
SJU
-
EUG
2 stops16h 11m
American Airlines
Deal found 6/24$724
This United Airlines deal was found by Cheapflights users on 6/26. 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 9/144:11 pm
EUG
-
SJU
3 stops20h 01m
United Airlines
Fri 9/181:00 am
SJU
-
EUG
2 stops17h 46m
United Airlines
Deal found 6/26$767
This American Airlines deal was found by Cheapflights users on 6/24. 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 9/231:41 pm
EUG
-
SJU
2 stops16h 43m
American Airlines
Tue 9/296:27 am
SJU
-
EUG
3 stops15h 50m
American Airlines
Deal found 6/24$786

Find flight deals from Eugene to Puerto Rico

Keep the following information in mind while searching for Eugene to Puerto Rico flight deals. Data was last updated June 28, 2026.

Round-trip from

$489
(Southwest)

Popular in

June

Cheapest in

January

Average price

$1,267
From Eugene to Puerto Rico
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($161 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Eugene to Puerto Rico 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 June 28, 2026.
Use the filters below to find and compare flights from Eugene to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

EugeneSan Juan

EUG - SJU

EUGSJU

Eugene

Wed 9/23

4:45 pm-12:03 pm

2 stops16h 18m

San Juan Luis Munoz Marin Intl

Tue 9/29

7:30 am-11:59 pm

2 stops19h 29m

$542
Quickest round-trip

EugeneSan Juan

EUG - SJU

EUGSJU

Eugene

Wed 9/23

5:00 am-11:50 pm

2 stops15h 50m

San Juan Luis Munoz Marin Intl

Tue 9/29

2:00 pm-9:12 pm

1 stop10h 12m

$642

EugeneSan Juan

EUG - SJU

EUGSJU

Eugene

Sat 7/11

5:15 am-12:10 am

2 stops15h 55m

San Juan Luis Munoz Marin Intl

Wed 7/15

9:50 am-11:15 pm

2 stops16h 25m

$686

EugeneSan Juan

EUG - SJU

EUGSJU

Eugene

Thu 12/10

3:25 pm-10:35 am

2 stops15h 10m

San Juan Luis Munoz Marin Intl

Sat 12/19

1:30 am-1:41 pm

2 stops16h 11m

$724

EugeneSan Juan

EUG - SJU

EUGSJU

Eugene

Wed 9/23

1:41 pm-1:54 pm

2 stops21h 13m

San Juan Luis Munoz Marin Intl

Tue 9/29

6:27 am-7:17 pm

3 stops15h 50m

$789

EugeneSan Juan

EUG - SJU

EUGSJU

Eugene

Mon 8/31

2:19 pm-2:44 pm

1 stop21h 25m

San Juan Luis Munoz Marin Intl

Wed 9/2

7:00 am-5:56 pm

2 stops13h 56m

$803

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Sorted by cheapest first

Best time to book a flight from Eugene to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Eugene 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 Eugene to Puerto Rico

What is the cheapest month to book a flight from Eugene to Puerto Rico?

Currently, January is the cheapest month in which you can book a flight from Eugene to Puerto Rico (average of $431). Flying from Eugene to Puerto Rico in September is currently the most expensive (average of $773). 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.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated June 28, 2026.
See what other customers who have flown with Southwest and United Airlines from Eugene to Puerto Rico have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,246 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Southwest
7.9
Good
4,246 reviews
Southwest
7.9
Good
4,246 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
United Airlines
7.4
Good
9,899 reviews
Southwest
7.9
Good
4,246 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Related info for your journey

Find useful and relevant information for your journey from Eugene to Puerto Rico. 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 Eugene to Puerto Rico?

    Located just 7.8 mi from the city center, Eugene (EUG) is the airport most travelers will use when flying to Puerto Rico from Eugene.

  • How long is the flight from Eugene to Puerto Rico?

    There are many flights that can get you from Eugene to Puerto Rico in 15h 50m. Fly via Delta, United Airlines, or Southwest to get the fastest option. There are 3723 mi between Eugene and Puerto Rico. This flight may include one or multiple stops.

  • Can I find deals for flights from Eugene to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Eugene to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Eugene to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Eugene to Puerto Rico.

  • Can I find deals for business class flights from Eugene to Puerto Rico?

    Yes. Cheapflights offers flight deals from Eugene to Puerto Rico 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 Eugene to Puerto Rico?

    Currently, January is the cheapest month in which you can book a flight from Eugene to Puerto Rico (average of $431). Flying from Eugene to Puerto Rico in September is currently the most expensive (average of $773). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Eugene to Puerto Rico

Discover the top 2 airlines that operate flights from Eugene to Puerto Rico. 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 June 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$431Average$668FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$438Average$590FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.