$415 Find Cheap Flights from Portland to Southeast Asia

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 Southeast Asia departing on 8/15. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Southeast Asia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Southeast Asia.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Best Southeast Asia Flight Deals from Portland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok2 stops$820
Manila
Manila2 stops$782
Ho Chi Minh City
Ho Chi Minh City2 stops$773
Singapore
Singapore1 stop$735
Denpasar
Denpasar2 stops$911
Hanoi
Hanoi2 stops$816
Phuket City
Phuket City2 stops$987
Cebu City
Cebu City2 stops$784
Da Nang
Da Nang2 stops$846
Phnom Penh
Phnom Penh2 stops$1,024
Chiang Mai
Chiang Mai2 stops$895
Angeles City
Angeles City2 stops$819
Vientiane
Vientiane2 stops$1,060
Ko Samui
Ko Samui2 stops$1,659
Davao City
Davao City2 stops$1,003
Krabi
Krabi3 stops$1,421
Bangkok
Bangkok2 stops$820
Manila
Manila2 stops$782
Ho Chi Minh City
Ho Chi Minh City2 stops$773
Singapore
Singapore1 stop$735
Denpasar
Denpasar2 stops$911
Hanoi
Hanoi2 stops$816
Phuket City
Phuket City2 stops$987
Cebu City
Cebu City2 stops$784
Da Nang
Da Nang2 stops$846
Phnom Penh
Phnom Penh2 stops$1,024
Chiang Mai
Chiang Mai2 stops$895
Angeles City
Angeles City2 stops$819
Vientiane
Vientiane2 stops$1,060
Ko Samui
Ko Samui2 stops$1,659
Davao City
Davao City2 stops$1,003
Krabi
Krabi3 stops$1,421

Cheap Flights from Portland to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Southeast Asia 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 Southeast Asia

Thu, Sep 4 - Thu, Sep 25
Air Canada Logo
10:00 am - 7:05 amPDX-SIN
30h 05m1 stop
Air Canada Logo
9:10 am - 11:01 pmSIN-PDX
28h 51m1 stop
$735Air Canada
Find Deal
Tue, Oct 28 - Tue, Nov 11
Air Canada Logo
7:00 pm - 7:55 amPDX-SIN
21h 55m1 stop
Air Canada Logo
9:00 pm - 9:15 amSIN-PDX
28h 15m2 stops
$736Air Canada
Find Deal
Mon, Sep 8 - Mon, Sep 29
United Airlines Logo
3:44 pm - 9:55 pmPDX-SGN
40h 11m2 stops
United Airlines Logo
11:15 pm - 10:45 pmSGN-PDX
37h 30m2 stops
$790United Airlines
Find Deal
Fri, Aug 1 - Fri, Sep 5
United Airlines Logo
5:25 am - 12:15 amPDX-SGN
28h 50m2 stops
United Airlines Logo
11:15 pm - 8:37 pmSGN-PDX
35h 22m2 stops
$793United Airlines
Find Deal
Sat, Nov 1 - Wed, Nov 26
Korean Air Logo
5:10 pm - 12:50 pmPDX-SGN
53h 40m2 stops
Korean Air Logo
2:05 pm - 1:19 pmSGN-PDX
38h 14m2 stops
$796Korean Air
Find Deal
Tue, Aug 5 - Tue, Aug 12
Korean Air Logo
11:15 am - 11:40 pmPDX-SIN
21h 25m2 stops
Korean Air Logo
7:30 am - 2:38 pmSIN-PDX
22h 08m2 stops
$812Korean Air
Find Deal
Tue, Oct 28 - Thu, Nov 13
Singapore Airlines Logo
6:00 am - 8:00 pmPDX-BKK
24h 00m2 stops
Singapore Airlines Logo
9:10 pm - 10:32 amBKK-PDX
28h 22m2 stops
$820Singapore Airlines
Find Deal
Fri, Nov 7 - Sun, Nov 16
Philippine Airlines Logo
5:30 pm - 4:25 amPDX-MNL
18h 55m1 stop
Philippine Airlines Logo
10:40 pm - 6:17 amMNL-PDX
23h 37m1 stop
$882Philippine Airlines
Find Deal
Mon, Jul 28 - Tue, Sep 9
Philippine Airlines Logo
5:30 pm - 5:45 amPDX-MNL
21h 15m2 stops
Philippine Airlines Logo
11:05 am - 10:47 pmMNL-PDX
26h 42m2 stops
$891Philippine Airlines
Find Deal
Wed, Oct 8 - Fri, Oct 24
Singapore Airlines Logo
7:00 am - 12:05 amPDX-DPS
26h 05m2 stops
Singapore Airlines Logo
9:45 pm - 12:25 pmDPS-PDX
29h 40m2 stops
$974Singapore Airlines
Find Deal
Useful Info

KAYAK's insights & trends for Portland to Southeast Asia flights

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

Can I save money by flying with a layover from Portland to Southeast Asia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $747, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Portland to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Southeast Asia, 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 Southeast Asia is September, when tickets cost $962 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,629 and $1,509 respectively.

What’s the cheapest day of the week to fly from Portland to Southeast Asia?

The average price of all round-trip flights from Portland to Southeast Asia clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Portland to Southeast Asia, look for departures on Mondays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Southeast Asia, Tuesday is the cheapest day to fly and Friday is the most expensive.

How far in advance should I book a flight from Portland to Southeast Asia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portland to Southeast Asia, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.


Good to know

Low seasonMay
High seasonJanuary
Cheapest flight$415
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Portland to Manila

FAQs - booking Southeast Asia flights

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

    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 Southeast Asia.

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

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

    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 Southeast Asia 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 Southeast Asia?

    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 Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Southeast Asia?

    The cheapest time of day to fly to Southeast Asia is generally at night, when round-trip flights cost $1,137 on average. Morning departures are around 20% cheaper than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,989.

Reviews of the top 5 airlines serving from Portland to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Portland to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Southeast Asia? 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.
8.4
Korean AirOverall score based on 1101 reviews
8.1Food
8.3Comfort
8.2Entertainment
8.5Boarding
8.7Crew
Airline reviews

This was an amazing flight. The crew was great. The service was great. The food provided was great.

10.0 ExcellentJason, Jun 2025BKK - ICN
Read more Korean Air reviews

This was an amazing flight. The crew was great. The service was great. The food provided was great.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

long flights are difficult but the crew and amenities made it a very good experience

Food from Surabaya was below average but from Singapore is much better

Both the staff at check-in counter and on board were pleasant and helpful. My chicken and mashed potato was good, sauce was tasty, but the zucchini, carrot n other accompanying vegetables were over-cooked a little. (I understand the meal has to be prepared earlier). Yet I would fly on Singapore Airlines again and recommend it to family and friends.

Very good flight from Boarding to landing -efficient and comfortable with decent entertainment options

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

The seat in economy class and legroom in Singapore airline are narrower than Korean airlines! I don’t have that comforting feeling flying with Singapore air as in the past!

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

It was very good experience on board to Sydney with SQ.

Everything was great keep up the good work 😁, can't ask for more.

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

Check in was easy through self-check-in kiosks just like domestic flights. Staff onboard were fantastic. Some "book the cook" good options weren't great, others really good. Entertainment options a bit limited to what I've experienced on Qantas. Overall a good flight though, especially for the price.

I love flying with United. Unfortunately, I flew on an older plane with minimal upgraded technology (no Bluetooth functionality or handy charging ports). Otherwise, the flight was great and even arrived early.

They changed my seats after I checked in and I was stressed from the time I saw that information until just before boarding, when the gate attendant fixed it, but it shouldn't have happened. And if it couldn't be prevented, then the people on the phone I spoke with should have done something to help, which they did not, nor did they offer me compensation, just meaningless apologies.

online check in was not available so i had to get to airport extra early. The flight was delayed and my luggage was lost. I had an argument with the person behind me who wanted to keep her bag on the floor and not allow my seat to recline on a 9hr plus flight. So overall, lots and lots of areas for improvement.

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

Very rough getting into denver. my kid threw up it was so rough.

We were given vouchers we couldn’t use with a 5.5 hour delay

Cramped seat even in economy plus seat 10A. Over booked flight, no space for the bags

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Overall the flight was a good experience. It is different from American Airlines because they board the back of the plane first rather than the front first. Food was decent. They gave out pillows ,blankets , and face masks. I did find this airline had faster flights back home than others. Less travel and layover time.

The flight was fantastic and the crew was absolutely excellent, but the entertainment system on the B777 was not working. That's a long time to spend with no electronics. The crew offered I-Pads but I had brought my own. I am only pointing this out because this is the second flight on Philippines Air where the entertainment system was down. FJM

The checking in agent tried to give me a different seat. She tried to give me an economy seat even though I had already checked in with a seat assigned and paid an extra $300 for those seats. She also separated our seating assignment. Very unprofessional and seriously a bad example for an agent. She was rude when I showed her my receipts and she made us wait more than 15 minutes before we were able to get the right boarding passes and correct seats (seats that we paid for in advance)!!!

Terrible check in and food was like from fast food

I thought the meals and meal choices were excellent. The cabin staff was helpful and as is the norm for Pinays, extraordinarily empathetic.

Not so good, my business seat is not working properly

Well it's strange everytime going the flight is late coming back the service is superior

Going to Dumaguette 4 times in a row I was late it's terrible

The staff was wonderful. Really took good care of me. The food was not my favorite.

love the flight but the chairs are not comfortable mostly for smaller people

Aircraft had technical issues. After 3 hours of trying to resolve, flight was cancelled. Was booked on a flight leaving 12 hours after intended departure. Now on 4 flights instead of 2 and a day late to my destination.

Abandoned me in hallway in a wheelchair… which I asked for because I sprained my back. After waiting in the hallway, I decided to walk the rest of the way since someone respecting me up.. My experience with the united was totally the opposite. Wheelchair access, propped swift and save me a lot of grief. Air Canada totally disorganized.

I am very tall. All airline seats are a bit uncomfortable.

Bad experience boarding and flight got delayed didn’t make it to my next flight

The food on the trip Toronto to Athens could be better: the chicken didn’t taste good.

Terrible confusion btw air Canada and United. Wasn’t able to change ticket because I had purchased on kayak. Rethinking booking tickets on this site, and will try to avoid United and aircanada going forward.

Conflicting information provided about baggage allowance. One screen said I had a carry on and another said I didnt.

The plane is too cramped! Zero leg room and when the person in front of me put their seat back they were basically laying in my lap.

Before final boarding, my husband and I — both seniors — were told that we could not bring our carry-on bags with us due to being in Zone 6. The staff took our bags with little explanation, stating it was policy. While we understand boarding procedures may vary by zone, the way we were spoken to was unnecessarily rude and dismissive. We felt disrespected and singled out, and the interaction left us deeply uncomfortable. As seniors, we expect to be treated with courtesy and dignity, especially during travel when accommodations and communication matter most. We hope you will look into this matter and ensure better training for staff in handling such situations with more empathy and professionalism.

They canceled my flight and then refused to reschedule me on another flight. I had to take a train. No compensation. I won't use Air Canada again.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.