฿4,450+ 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 19/1. 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
23 Jan — 30 Jan1
1 adult
1 adult, Economy, 0 bags

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 24 December 2025.

Mon 23/205:31PWM - BKK
2 stops31h 14mเดลต้า
Wed 1/409:50BKK - PWM
2 stops48h 32mเดลต้า
Deal found 23/12฿31,398
Wed 25/205:31PWM - BKK
2 stops53h 49mเดลต้า
Tue 31/309:50BKK - PWM
2 stops48h 32mเดลต้า
Deal found 23/12฿31,647
Sun 1/305:31PWM - BKK
2 stops31h 14mเดลต้า
Wed 1/409:50BKK - PWM
2 stops48h 32mเดลต้า
Deal found 23/12฿32,643
Tue 24/206:18PWM - BKK
2 stops30h 27mKorean Air
Sat 4/421:40BKK - PWM
2 stops36h 42mKorean Air
Deal found 23/12฿32,830
Sun 1/314:35PWM - BKK
2 stops46h 20mKorean Air
Sat 4/409:50BKK - PWM
2 stops48h 32mKorean Air
Deal found 23/12฿33,016
Mon 23/205:45PWM - BKK
2 stops35h 25mUnited Airlines
Wed 1/415:40BKK - PWM
3 stops34h 36mUnited Airlines
Deal found 23/12฿33,421
Sun 1/314:10PWM - BKK
2 stops51h 00mUnited Airlines
Tue 31/315:40BKK - PWM
3 stops34h 36mUnited Airlines
Deal found 23/12฿33,608
Wed 25/216:15PWM - BKK
2 stops48h 55mUnited Airlines
Tue 31/315:40BKK - PWM
3 stops34h 36mUnited Airlines
Deal found 23/12฿33,639
Tue 24/206:00PWM - BKK
2 stops30h 20mUnited Airlines
Tue 31/315:40BKK - PWM
3 stops34h 36mUnited Airlines
Deal found 23/12฿33,763
Sat 28/214:35PWM - BKK
2 stops58h 50mKorean Air
Sat 4/409:50BKK - PWM
2 stops48h 32mKorean Air
Deal found 23/12฿34,261
Thu 5/214:35PWM - HKT
2 stops43h 35mKorean Air
Thu 12/223:40HKT - PWM
2 stops35h 26mKorean Air
Deal found 22/12฿41,854

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 24 December 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

Mon 23/2

05:31-00:45

2 stops31h 14m

Bangkok Suvarnabhumi

Wed 1/4

09:50-23:22

2 stops48h 32m

฿31,398

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 26/2

05:31-00:55

2 stops31h 24m

Bangkok Suvarnabhumi

Wed 1/4

09:50-23:22

2 stops48h 32m

฿31,398

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Mon 23/2

05:31-00:55

2 stops31h 24m

Bangkok Suvarnabhumi

Tue 31/3

09:50-23:22

2 stops48h 32m

฿31,398

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 26/2

05:31-00:55

2 stops31h 24m

Bangkok Suvarnabhumi

Tue 31/3

09:50-23:22

2 stops48h 32m

฿31,398

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Wed 25/2

05:31-23:20

2 stops53h 49m

Bangkok Suvarnabhumi

Tue 31/3

09:50-23:22

2 stops48h 32m

฿31,647

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Tue 24/2

06:18-00:45

2 stops30h 27m

Bangkok Suvarnabhumi

Sat 4/4

21:40-23:22

2 stops36h 42m

฿32,830

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Sun 1/3

14:35-00:55

2 stops46h 20m

Bangkok Suvarnabhumi

Sat 4/4

09:50-23:22

2 stops48h 32m

฿33,016

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 26/2

06:00-05:10

2 stops35h 10m

Bangkok Suvarnabhumi

Wed 1/4

15:40-15:16

3 stops34h 36m

฿33,421

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Mon 23/2

05:45-05:10

2 stops35h 25m

Bangkok Suvarnabhumi

Tue 31/3

15:40-15:16

3 stops34h 36m

฿33,421

PortlandBangkok

PWM - BKK

PWMBKK

Portland

Thu 26/2

06:00-05:10

2 stops35h 10m

Bangkok Suvarnabhumi

Tue 31/3

15:40-15:16

3 stops34h 36m

฿33,421

Flights are sorted by cheapest return flights first.

Deals found on 23/12

Showing 1-10 of 13 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, January is the cheapest month in which you can book a flight from Portland, Maine (average of ฿23,619). Flying from Portland, Maine in June will prove the most costly (average of ฿34,977). 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 24 December 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 New York, Orlando Airport, Newark Airport. While Orlando Airport, New York, Orlando 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 January; 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

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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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