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฿3,824+ Cheap flights from Portland, Maine

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/11. 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.
PWM — BKK
19 Nov — 26 Nov1
1 adult
1 adult, Economy

What to know about flights from Portland

Discover essential information about flights departing from Portland, including flight schedules, destinations, airlines operating at the Portland airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 20 October 2025.

Cheapest airline

Cathay Pacific
On average, Cathay Pacific currently has the cheapest one-way flight from Portland (avg. price of ฿32,949).
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Find flights from Portland

Enter your travel dates to find the best prices.

Cheapest flights from Portland
Explore the most affordable flight options available from Portland. Find the lowest fares based on data from user searches, with prices last updated on 20 October 2025.

Wed 4/205:30PWM - BKK
2 stops29h 50mเดลต้า
Wed 11/200:55BKK - PWM
2 stops33h 04mเดลต้า
Deal found 18/10฿30,752
Mon 2/206:30PWM - BKK
2 stops42h 55mKorean Air
Tue 10/209:40BKK - PWM
2 stops48h 19mKorean Air
Deal found 18/10฿30,948
Sun 1/212:50PWM - BKK
2 stops46h 30mเดลต้า
Mon 9/200:55BKK - PWM
2 stops23h 02mเดลต้า
Deal found 18/10฿30,981
Sun 1/214:35PWM - BKK
2 stops58h 50mKorean Air
Tue 10/209:40BKK - PWM
2 stops48h 19mKorean Air
Deal found 18/10฿31,111
Fri 30/105:30PWM - BKK
2 stops31h 25mKorean Air
Tue 10/209:40BKK - PWM
2 stops48h 19mKorean Air
Deal found 18/10฿32,059
Fri 30/112:50PWM - BKK
2 stops47h 55mเดลต้า
Sun 8/209:40BKK - PWM
2 stops38h 17mเดลต้า
Deal found 18/10฿32,092
Wed 4/205:30PWM - BKK
2 stops31h 15mเดลต้า
Mon 9/200:55BKK - PWM
2 stops23h 02mเดลต้า
Deal found 18/10฿32,157
Thu 5/206:30PWM - BKK
2 stops30h 15mKorean Air
Tue 10/209:40BKK - PWM
2 stops48h 19mKorean Air
Deal found 18/10฿32,353
Mon 2/212:50PWM - BKK
2 stops46h 30mเดลต้า
Sun 8/209:40BKK - PWM
2 stops38h 17mเดลต้า
Deal found 18/10฿32,386
Fri 30/105:30PWM - BKK
2 stops31h 25mKorean Air
Fri 6/221:30BKK - PWM
2 stops36h 29mKorean Air
Deal found 18/10฿33,170
Mon 2/206:30PWM - BKK
2 stops42h 55mKorean Air
Fri 6/209:40BKK - PWM
2 stops48h 19mKorean Air
Deal found 18/10฿33,464
Thu 5/212:50PWM - BKK
2 stops47h 55mเดลต้า
Wed 11/200:55BKK - PWM
2 stops33h 04mเดลต้า
Deal found 18/10฿33,497

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 20 October 2025. In the last 7 days, Cheapflights users made a total of 17,341 searches

Fly to

Suvarnabhumi

Route

Depart

Return

Price

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 4/2

05:30-23:20

2 stops29h 50m

Bangkok Suvarnabhumi

Wed 11/2

00:55-21:59

2 stops33h 04m

฿30,752

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Mon 2/2

12:50-23:20

2 stops46h 30m

Bangkok Suvarnabhumi

Mon 9/2

00:55-11:57

2 stops23h 02m

฿30,981

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 1/2

14:35-13:25

2 stops58h 50m

Bangkok Suvarnabhumi

Tue 10/2

09:40-21:59

2 stops48h 19m

฿31,111

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sat 31/1

12:50-00:45

2 stops47h 55m

Bangkok Suvarnabhumi

Mon 9/2

00:55-11:57

2 stops23h 02m

฿32,092

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Fri 30/1

12:50-00:45

2 stops47h 55m

Bangkok Suvarnabhumi

Wed 11/2

00:55-21:59

2 stops33h 04m

฿32,092

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sat 31/1

12:50-00:45

2 stops47h 55m

Bangkok Suvarnabhumi

Wed 11/2

00:55-21:59

2 stops33h 04m

฿32,092

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 4/2

05:30-23:20

2 stops29h 50m

Bangkok Suvarnabhumi

Sun 8/2

09:40-11:57

2 stops38h 17m

฿32,157

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Mon 2/2

12:50-23:20

2 stops46h 30m

Bangkok Suvarnabhumi

Sun 8/2

09:40-11:57

2 stops38h 17m

฿32,386

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sat 31/1

05:30-21:30

2 stops52h 00m

Bangkok Suvarnabhumi

Fri 6/2

21:30-21:59

2 stops36h 29m

฿33,170

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 1/2

14:35-13:25

2 stops58h 50m

Bangkok Suvarnabhumi

Fri 6/2

21:30-21:59

2 stops36h 29m

฿33,660

Flights are sorted by cheapest return flights first.

Deals found on 18/10

Showing 1-10 of 15 results
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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, Maine?

Currently, September is the cheapest month in which you can book a flight from Portland, Maine (average of ฿24,968). Flying from Portland, Maine in June will prove the most costly (average of ฿36,732). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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Direct flights from Maine

Book a direct flight from one of these other cities located in Maine.
Direct flights from Boston

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 20 October 2025.

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

    The most selected flight destinations from Portland, Maine for the current month are Washington, D.C. Reagan-National Airport, Orlando Airport, Denver. While Orlando Airport, Washington, D.C. Reagan-National Airport, Denver are the top choices made by travellers year-round.

  • What is the cheapest month to fly from Portland, Maine?

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

  • 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?

    By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best 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?

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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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?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best 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?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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