$724 Find Cheap Flights from Portland to Thailand - Compare and Save

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 Thailand departing on 7/7. 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 Thailand 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 Thailand 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 Thailand

Sun, Sep 13 - Wed, Sep 30
Etihad Airways Logo
6:00 am - 11:50 pm
PWM
-
BKK
30h 50m
2 stops
Etihad Airways Logo
3:15 am - 11:52 pm
BKK
-
PWM
31h 37m
2 stops
$1,015Etihad Airways
Thu, Sep 24 - Tue, Sep 29
Etihad Airways Logo
6:00 am - 11:50 pm
PWM
-
HKT
30h 50m
2 stops
Etihad Airways Logo
3:20 pm - 11:52 pm
HKT
-
PWM
43h 32m
2 stops
$1,038Etihad Airways
Mon, Sep 28 - Fri, Oct 2
Etihad Airways Logo
6:00 am - 11:50 pm
PWM
-
BKK
30h 50m
2 stops
Etihad Airways Logo
9:00 pm - 11:52 pm
BKK
-
PWM
37h 52m
2 stops
$1,038Etihad Airways
Thu, Sep 24 - Mon, Sep 28
Etihad Airways Logo
6:00 am - 11:50 pm
PWM
-
HKT
30h 50m
2 stops
Etihad Airways Logo
9:25 am - 11:52 pm
HKT
-
PWM
49h 27m
2 stops
$1,068Etihad Airways
Fri, Jul 10 - Thu, Jul 16
Multiple Airlines Logo
6:00 am - 6:40 am
PWM
-
HKT
37h 40m
2 stops
Multiple Airlines Logo
3:20 pm - 12:16 am
HKT
-
PWM
43h 56m
2 stops
$1,141Multiple Airlines
Mon, Sep 28 - Fri, Oct 2
United Airlines Logo
6:00 am - 9:35 am
PWM
-
BKK
40h 35m
3 stops
United Airlines Logo
9:35 am - 7:24 pm
BKK
-
PWM
44h 49m
2 stops
$1,220United Airlines
Mon, Sep 28 - Fri, Oct 2
United Airlines Logo
11:35 am - 9:35 am
PWM
-
BKK
35h 00m
3 stops
United Airlines Logo
3:45 pm - 10:02 am
BKK
-
PWM
29h 17m
3 stops
$1,234United Airlines
Mon, Oct 26 - Sat, Oct 31
ANA Logo
9:34 am - 5:10 am
PWM
-
BKK
32h 36m
2 stops
ANA Logo
4:55 pm - 11:57 pm
BKK
-
PWM
42h 02m
1 stop
$1,255ANA
Thu, Sep 24 - Tue, Sep 29
Multiple Airlines Logo
6:00 am - 9:45 pm
PWM
-
HKT
52h 45m
3 stops
Multiple Airlines Logo
10:45 pm - 11:52 pm
HKT
-
PWM
60h 07m
2 stops
$1,583Multiple Airlines
Fri, Jul 10 - Thu, Jul 16
Air India Logo
6:00 am - 7:30 am
PWM
-
HKT
38h 30m
2 stops
Air India Logo
8:30 am - 12:16 am
HKT
-
PWM
50h 46m
3 stops
$1,975Air India
Booking Insights

KAYAK's insights & trends for Portland to Thailand flights

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

What is the cheapest month to fly from Portland to Thailand?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Thailand, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Thailand is September, when tickets cost $0 (return) on average. On the other hand, the most expensive months are June and January, when the average cost of round-trip tickets is $1,638 and $1,334 respectively.

Good to know

Low seasonMay
Cheapest flight$724
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Portland to Bangkok

FAQs - booking Thailand flights

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

    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 Thailand.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Thailand 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 Thailand?

    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 Thailand 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 Thailand?

    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 Thailand 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 Thailand

 
Need help choosing which airline to fly with from Portland to Thailand? 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.
7.4
United AirlinesOverall score based on 9830 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
8.1Crew
6.6Food
Airline reviews

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

2.0 MediocreAnonymous, Jun 2026
ORD - BHM
Read more United Airlines reviews

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Flight cancelled instead of leaving Friday am now, maybe, leaving Sunday

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Everything you need to know for your flight from Portland to Thailand

Information on your arrival and departure airports