$118+ Cheap flights from Denver to Portland, ME (DEN - PWM)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PWM
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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Find cheap flights from Denver to Portland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Denver Intl to Portland are usually found in January or November, booked 36 days in advance, depart on a Friday or Thursday and return on a Tuesday
Cheap flight deals from Denver to Portland
Cheapest
Best
Last-minute
One-way
Cheapest flights from Denver to PortlandExplore the most affordable flight options available from Denver to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
Explore the most affordable flight options available from Denver to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:59 pm -
2 stops14h 00m
Wed 9/97:00 am -
1 stop12h 47m
Deal found 8/10![Multiple Airlines logo]()
$386
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:10 am -
1 stop7h 40m
Fri 9/116:00 am -
1 stop7h 05m
Deal found 8/10![Delta logo]()
$389
This American Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/82:21 pm -
1 stop6h 27m
Fri 9/112:03 pm -
1 stop8h 32m
Deal found 8/7![American Airlines logo]()
$393
This Southwest deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:40 pm -
1 stop6h 25m
Fri 8/2810:30 am -
1 stop6h 25m
Deal found 8/5![Southwest logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:10 pm -
2 stops35h 58m
Sun 9/203:52 pm -
1 stop18h 18m
Deal found 8/7![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:59 pm -
2 stops14h 17m
Mon 8/317:00 am -
1 stop16h 40m
Deal found 8/9![Multiple Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:45 am -
2 stops7h 45m
Fri 10/165:20 am -
1 stop6h 30m
Deal found 8/8![Southwest logo]()
$398
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:04 am -
Nonstop3h 58m
Mon 10/267:30 pm -
1 stop6h 49m
Deal found 8/9![United Airlines logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:10 pm -
2 stops19h 14m
Mon 10/57:00 am -
1 stop13h 17m
Deal found 8/9![Multiple Airlines logo]()
$402
This Southwest deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:35 am -
2 stops10h 30m
Sat 9/265:40 am -
2 stops9h 30m
Deal found 8/10![Southwest logo]()
$403
This Southwest deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:15 am -
2 stops8h 50m
Tue 9/110:30 am -
2 stops8h 45m
Deal found 8/10![Southwest logo]()
$404
Best flights from Denver to PortlandDiscover carefully curated flight deals from Denver to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
Discover carefully curated flight deals from Denver to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:05 am -
1 stop7h 56m
Sat 9/126:02 am -
2 stops9h 03m
Deal found 8/10![Delta logo]()
$394
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/191:25 pm -
1 stop5h 58m
Sat 9/263:45 pm -
Nonstop4h 33m
Deal found 8/10![United Airlines logo]()
$430
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:11 am -
Nonstop3h 51m
Sat 11/73:23 pm -
Nonstop4h 51m
Deal found 8/6![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:59 pm -
1 stop7h 09m
Fri 10/97:25 pm -
1 stop7h 05m
Deal found 8/7![United Airlines logo]()
$440
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/259:53 am -
Nonstop3h 58m
Mon 8/317:35 pm -
1 stop6h 55m
Deal found 8/5![United Airlines logo]()
$472
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/79:53 am -
Nonstop3h 58m
Tue 9/155:15 am -
1 stop8h 46m
Deal found 8/5![United Airlines logo]()
$490
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/289:53 am -
Nonstop3h 58m
Sun 8/306:00 am -
1 stop8h 21m
Deal found 8/8![United Airlines logo]()
$528
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/199:53 am -
Nonstop3h 58m
Mon 9/213:37 pm -
Nonstop4h 33m
Deal found 8/5![United Airlines logo]()
$583
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/510:04 am -
Nonstop3h 58m
Sat 10/107:25 pm -
1 stop7h 05m
Deal found 8/6![United Airlines logo]()
$588
Last-minute flights from Denver to PortlandDiscover last-minute flight deals from Denver to Portland. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Portland. Data last updated August 10, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:40 pm -
1 stop6h 25m
Fri 8/2810:30 am -
1 stop6h 25m
Deal found 8/5![Southwest logo]()
$394
This Southwest deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:15 am -
2 stops8h 50m
Tue 9/110:30 am -
2 stops8h 45m
Deal found 8/10![Southwest logo]()
$404
This American Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:43 am -
2 stops8h 38m
Sat 9/512:06 pm -
2 stops9h 32m
Deal found 8/8![American Airlines logo]()
$405
This Kiwi.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:59 pm -
2 stops14h 17m
Mon 8/317:00 am -
1 stop16h 40m
Deal found 8/9![Multiple Airlines logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:59 pm -
2 stops14h 00m
Wed 9/97:00 am -
1 stop12h 47m
Deal found 8/10![Multiple Airlines logo]()
$386
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:10 am -
1 stop7h 40m
Fri 9/116:00 am -
1 stop7h 05m
Deal found 8/10![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:00 am -
1 stop6h 34m
Mon 9/147:35 pm -
1 stop6h 55m
Deal found 8/8![United Airlines logo]()
$406
This American Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/82:21 pm -
1 stop6h 27m
Fri 9/112:03 pm -
1 stop8h 32m
Deal found 8/7![American Airlines logo]()
$393
This Southwest deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:15 am -
2 stops8h 55m
Tue 9/155:45 am -
1 stop7h 40m
Deal found 8/9![Southwest logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:10 pm -
2 stops35h 58m
Sun 9/203:52 pm -
1 stop18h 18m
Deal found 8/7![Multiple Airlines logo]()
$396
This Southwest deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:35 am -
2 stops10h 30m
Sat 9/265:40 am -
2 stops9h 30m
Deal found 8/10![Southwest logo]()
$403
One-way flights from Denver to PortlandSearch for one-way flight options from Denver to Portland. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
Search for one-way flight options from Denver to Portland. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This Southwest deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:40 am -
1 stop6h 50m
Deal found 8/10![Southwest logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:44 am -
2 stops32h 35m
Deal found 8/9![Multiple Airlines logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:59 pm -
2 stops14h 00m
Deal found 8/7![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:30 am -
2 stops24h 38m
Deal found 8/8![Multiple Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:48 pm -
2 stops31h 20m
Deal found 8/7![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:44 am -
2 stops20h 24m
Deal found 8/8![Multiple Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:59 pm -
1 stop8h 29m
Deal found 8/7![Multiple Airlines logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:10 pm -
2 stops19h 14m
Deal found 8/10![Multiple Airlines logo]()
$168
This JetBlue deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:15 pm -
1 stop6h 39m
Deal found 8/7![JetBlue logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:59 pm -
2 stops36h 10m
Deal found 8/7![Multiple Airlines logo]()
$172
Find flight deals from Denver to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Portland (PWM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $385 (Kiwi.com) |
One-way from | $118 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $558 |
Good round-trip deal | $479 or less |
Good one-way deal | $353 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 10, 2026.
Use the filters below to find and compare flights from Denver to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverPortland
DEN Denver Intl - PWM Portland
DENPWM
Denver Intl
Thu 9/3
6:05 am-4:01 pm
1 stop7h 56m
Portland
Sat 9/12
6:02 am-1:05 pm
2 stops9h 03m
$394
DenverPortland
DEN Denver Intl - PWM Portland
DENPWM
Denver Intl
Sat 9/19
1:25 pm-9:23 pm
1 stop5h 58m
Portland
Sat 9/26
3:45 pm-6:18 pm
Nonstop4h 33m
$430
DenverPortland
DEN Denver Intl - PWM Portland
DENPWM
Denver Intl
Tue 11/3
10:11 am-4:02 pm
Nonstop3h 51m
Portland
Sat 11/7
3:23 pm-6:14 pm
Nonstop4h 51m
$439
DenverPortland
DEN Denver Intl - PWM Portland
DENPWM
Denver Intl
Fri 10/2
11:59 pm-9:08 am
1 stop7h 09m
Portland
Fri 10/9
7:25 pm-12:30 am
1 stop7h 05m
$440
DenverPortland
DEN Denver Intl - PWM Portland
DENPWM
Denver Intl
Tue 8/25
9:53 am-3:51 pm
Nonstop3h 58m
Portland
Mon 8/31
7:35 pm-12:30 am
1 stop6h 55m
$472
DenverPortland
DEN Denver Intl - PWM Portland
DENPWM
Denver Intl
Mon 9/7
9:53 am-3:51 pm
Nonstop3h 58m
Portland
Tue 9/15
5:15 am-12:01 pm
1 stop8h 46m
$490
DenverPortland
DEN Denver Intl - PWM Portland
DENPWM
Denver Intl
Fri 8/28
9:53 am-3:51 pm
Nonstop3h 58m
Portland
Sun 8/30
6:00 am-12:21 pm
1 stop8h 21m
$528
Quickest round-trip
DenverPortland
DEN Denver Intl - PWM Portland
DENPWM
Denver Intl
Sat 9/19
9:53 am-3:51 pm
Nonstop3h 58m
Portland
Mon 9/21
3:37 pm-6:10 pm
Nonstop4h 33m
$583
DenverPortland
DEN Denver Intl - PWM Portland
DENPWM
Denver Intl
Mon 10/5
10:04 am-4:02 pm
Nonstop3h 58m
Portland
Sat 10/10
7:25 pm-12:30 am
1 stop7h 05m
$588
Cheapest one-way
DenverPortland
DEN Denver Intl - PWM Portland
DENPWM
Denver Intl
Sat 10/10
3:15 pm-11:52 pm
1 stop6h 37m
$170
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Denver to Portland
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Portland in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Denver-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Portland, Maine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Denver-Portland, Maine flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Denver to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Denver with our price prediction graph.
DEN-PWM
Estimated round-trip 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.
Cheapflights Insights
Everything you need to know about your flight from Denver to Portland
How far ahead should I book a flight from Denver to Portland, Maine?
Booking 35 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Portland, Maine. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Denver to Portland, Maine?
Currently, January is the cheapest month in which you can book a flight from Denver to Portland, Maine (average of $363). Flying from Denver to Portland, Maine in June is currently the most expensive (average of $604). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from DEN to PWM?
Find hourly flight availability from Denver to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 10, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denver to Portland, Maine as you normally would.
Reviews of airlines servicing Portland
Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated August 10, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Denver to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Related info for your journey
Find useful and relevant information for your journey from Denver to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsNorth Conway
Lewiston
Brunswick
Conway
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Denver and Portland flights
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Top 5 airlines flying from Denver to Portland
Discover the top 5 airlines that operate flights from Denver to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$258 | Average$413 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$266 | Average$432 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$289 | Average$468 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$557 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$323 | Average$500 | FlexibilityNo cancel fee | On-time63% |