$474 Find Cheap Flights from Portland to Saint Lucia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Saint Lucia departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Portland to Saint Lucia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Saint Lucia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Saint Lucia

Thu, May 21 - Wed, Jun 3
Delta Logo
1:40 pm - 2:05 pm
PDX
-
UVF
21h 25m
2 stops
Delta Logo
3:25 pm - 9:57 am
UVF
-
PDX
21h 32m
2 stops
$858Delta
Tue, May 26 - Tue, Jun 2
Delta Logo
2:06 pm - 2:05 pm
PDX
-
UVF
20h 59m
1 stop
Delta Logo
3:25 pm - 5:15 pm
UVF
-
PDX
28h 50m
2 stops
$878Delta
Thu, May 21 - Mon, Jun 1
Delta Logo
1:35 pm - 2:05 pm
PDX
-
UVF
21h 30m
2 stops
Delta Logo
3:25 pm - 7:23 pm
UVF
-
PDX
30h 58m
2 stops
$883Delta
Thu, May 28 - Thu, Jun 4
Multiple Airlines Logo
2:12 pm - 2:05 pm
PDX
-
UVF
20h 53m
2 stops
Multiple Airlines Logo
2:30 pm - 1:50 pm
UVF
-
PDX
26h 20m
2 stops
$885Multiple Airlines
Thu, May 28 - Thu, Jun 4
Delta Logo
2:06 pm - 2:05 pm
PDX
-
UVF
20h 59m
1 stop
Delta Logo
3:25 pm - 4:23 pm
UVF
-
PDX
27h 58m
2 stops
$888Delta
Sat, May 23 - Mon, Jun 1
JetBlue Logo
2:30 pm - 3:35 pm
PDX
-
UVF
22h 05m
2 stops
JetBlue Logo
4:55 pm - 1:10 pm
UVF
-
PDX
23h 15m
2 stops
$898JetBlue
Thu, May 21 - Tue, Jun 2
Delta Logo
1:40 pm - 2:05 pm
PDX
-
UVF
21h 25m
2 stops
Delta Logo
3:25 pm - 10:11 am
UVF
-
PDX
21h 46m
1 stop
$903Delta
Tue, May 26 - Tue, Jun 2
American Airlines Logo
3:27 pm - 1:48 pm
PDX
-
UVF
19h 21m
2 stops
American Airlines Logo
3:16 pm - 11:09 am
UVF
-
PDX
22h 53m
2 stops
$913American Airlines
Sun, May 24 - Tue, Jun 2
Air Canada Logo
2:12 pm - 2:05 pm
PDX
-
UVF
44h 53m
2 stops
Air Canada Logo
3:05 pm - 10:30 pm
UVF
-
PDX
34h 25m
2 stops
$916Air Canada
Tue, Jul 21 - Wed, Jul 29
Multiple Airlines Logo
2:30 pm - 7:00 pm
PDX
-
SLU
25h 30m
3 stops
Multiple Airlines Logo
12:35 pm - 10:43 pm
SLU
-
PDX
37h 08m
3 stops
$1,379Multiple Airlines
Booking Insights

KAYAK's insights & trends for Portland to Saint Lucia flights

Get data-powered insights and trends into flights from Portland to Saint Lucia to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Portland to Saint Lucia?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Portland to Saint Lucia were found on Delta ($858) and JetBlue ($898).

Good to know

Low seasonDecember
Cheapest flight$474
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Portland to Castries

FAQs - booking Saint Lucia flights

  • How does KAYAK find such low prices on flights from Portland to Saint Lucia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Saint Lucia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Saint Lucia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Saint Lucia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Saint Lucia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to Saint Lucia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Saint Lucia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to Saint Lucia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Portland to Saint Lucia

 
Need help choosing which airline to fly with from Portland to Saint Lucia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11584 reviews
7.2Comfort
7.5Boarding
6.9Entertainment
6.4Food
7.9Crew
Airline reviews

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

10.0 ExcellentRoberto, Apr 2026
PHL - PIT
Read more American Airlines reviews

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

Very good I can’t complain one bit. Thank you American Airlines for making my flight enjoyable and safe!

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

Flight was fine, but not having WiFi was a major negative

Friendly crew is the only nice thing. Seats uncomfortable. Food and snacks horrible. Movies were the same as the first 10 hour flight two weeks before

When I booked my flight a month ago - I selected a seat. That seat was NOT the one I ended up with when I checked into my flight the day before. This is the second time this has occurred. So, I checked my next flight on Wednesday and Thursday and no seat was assigned. Poor, very poor customer service.

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

Incredibly delayed. First delay was due to plane coming in being late. Resulted in 30 minute delay. Boarded and then had multiple mechanical issues. Was on plane for an hour until they told people they could get off if they wanted but couldn't come back. Then gate agent rushed in and said they had lost control of who went off and we would all have to deplane and then get back on. They said flight had not been cancelled. Then while sitting waiting to board again they announced it would take two hours to get new plane and to wait at new gate. New plane arrived, reboarded only to find out that pilots had timed out. Waited for new pilots. In that time one of the flight attendants timed out. Never received food or water while waiting. Was confusing mess as to what was happening. Even flight attendants and gate agents were getting frustrated. Almost 6 hours delayed. Called American to received flight credit but can't get anywhere as Kayak reservation and don't have a ticket number. Reached out to Kayak but never heard back.

American flight was diverted and delayed but app didn’t show that information so I wasn’t able to change my connection until the last min.

Wifi was spotty. Tray table was very dirty when I sat down.

Everything you need to know for your flight from Portland to Saint Lucia

Information on your arrival and departure airports