฿5,712+ Cheap flights from Portland

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/8. 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.
PDX — BKK
22 Jul — 29 Jul1
1 adult
1 adult, Economy, 0 bags

Find flights from Portland within your budget

 
Find flights departing from Portland that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 22 June 2026. In the last 7 days, Cheapflights users made a total of 17,341 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 4/11

21:32-14:20

2 stops49h 48m

Chiang Mai

Wed 18/11

15:35-16:34

2 stops39h 59m

฿31,615

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 5/11

07:01-14:20

2 stops40h 19m

Chiang Mai

Tue 17/11

15:35-23:10

2 stops46h 35m

฿32,239

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 5/11

07:01-14:20

2 stops40h 19m

Chiang Mai

Wed 18/11

15:35-20:50

2 stops44h 15m

฿32,239

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 1/9

19:15-04:35

2 stops43h 20m

Bangkok Suvarnabhumi

Tue 29/9

09:35-22:57

2 stops27h 22m

฿32,797

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 6/9

05:00-23:55

2 stops28h 55m

Bangkok Suvarnabhumi

Wed 16/9

07:00-22:45

2 stops29h 45m

฿32,928

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 9/8

08:35-09:35

3 stops35h 00m

Bangkok Suvarnabhumi

Wed 9/9

09:35-20:59

2 stops49h 24m

฿32,928

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Fri 11/9

15:27-09:35

3 stops28h 08m

Bangkok Suvarnabhumi

Sun 20/9

07:00-20:59

2 stops27h 59m

฿32,994

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Fri 27/11

06:53-00:20

2 stops26h 27m

Bangkok Suvarnabhumi

Mon 7/12

16:55-14:27

2 stops36h 32m

฿33,486

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 21/11

19:35-11:30

2 stops48h 55m

Bangkok Suvarnabhumi

Sat 19/12

16:55-20:33

2 stops42h 38m

฿33,848

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sun 30/8

13:53-16:20

2 stops36h 27m

Chiang Mai

Sat 5/9

17:20-09:25

2 stops30h 05m

฿34,110

Flights are sorted by cheapest return flights first.

Deals found on 20/6

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Portland

Have a flexible travel schedule? Discover the best time to fly from Portland with our price prediction graph.
Estimated return 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.

Travel insights for flights from Portland

Get recent, data-driven insights about flights from Portland including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portland?

Currently, April is the cheapest month in which you can book a flight from Portland (average of ฿30,006). Flying from Portland in December will prove the most costly (average of ฿58,338). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

What are popular destinations to fly to from Portland?

If you’re flying from Portland, these routes are more frequently taken by airlines Chicago (353 flights per day), San Francisco (352 flights per day) and Los Angeles (347 flights per day).

Salt Lake City
Salt Lake City
From ฿11,076
Denver Intl
Denver Intl
From ฿18,560

What is the cheapest place to fly to from Portland?

The cheapest city to fly to from Portland is Salt Lake City, with prices starting at ฿11,076. Explore other affordable destinations below.

Salt Lake City
Salt Lake City
From ฿11,076
Denver Intl
Denver Intl
From ฿18,560

When is the best time to book a flight from Portland?

Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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Related info for your journey

Access useful and relevant information related to your journey from Portland. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 22 June 2026.

  • What are the most popular destinations to fly to from Portland?

    The most selected flight destinations from Portland for the current month are Chicago, Boston, Cancún. While Boston, Cancún, Chicago are the top choices made by travellers year-round.

  • What is the cheapest flight from Portland to anywhere?

    Users have flown out of Portland for as low as ฿11,076 to Salt Lake City (prices may vary depending on the airline and departure time). On average, users have booked flights for ฿14,950 to fly from Portland.

  • What is the cheapest premium economy flight from Portland?

    If you're looking for an elevated level of comfort for your next adventure, premium economy flights from Portland may suit your needs. The cheapest premium economy flights from Portland are:
    Fly Portland to Los Angeles from ฿30,089
    Fly Portland to London Heathrow Airport from ฿76,579

  • What is the cheapest month to fly from Portland?

    At the present moment the cheapest month to fly from Portland is currently April; with December being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Portland?

    Here are some of the cheapest flight destinations from Portland:
    Fly from Portland to Bangkok from ฿30,762

  • How does Cheapflights help users find flights from Portland?

    Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Portland. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

  • Why should you use Cheapflights to find cheap flight tickets from Portland?

    It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portland.

  • Can Cheapflights find flights from Portland with no change fees?

    Yes! Cheapflights helps users easily find flights from Portland with no change fees.

  • Can Cheapflights notify me if prices for flights from Portland become cheaper?

    Not ready to book yet? You can track prices for flights from Portland on Cheapflights with our Price Alerts feature and get notified when better prices are available.

See more FAQs

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portland?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Portland. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Portland?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portland.

Can Cheapflights find flights from Portland with no change fees?

Yes! Cheapflights helps users easily find flights from Portland with no change fees.

Can Cheapflights notify me if prices for flights from Portland become cheaper?

Not ready to book yet? You can track prices for flights from Portland on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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