$179+ Cheap flights from Portland, ME to Denver (PWM - DEN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DEN
Dec 10 — Dec 171
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Denver 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 Portland to Denver Intl are usually found in February or April, booked 66 days in advance, depart on a Thursday or Tuesday and return on a Saturday
Cheap flight deals from Portland to Denver
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to DenverExplore the most affordable flight options available from Portland to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
Explore the most affordable flight options available from Portland to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1212:28 pm -
1 stop8h 42m
Tue 12/156:41 am -
2 stops27h 07m
Deal found 11/5![Multiple Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 11/5. 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.
Sat 12/121:00 pm -
1 stop6h 30m
Tue 12/157:00 am -
1 stop5h 45m
Deal found 11/5![Southwest logo]()
$377
This Southwest deal was found by Cheapflights users on 11/5. 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.
Thu 12/35:15 am -
2 stops9h 55m
Thu 12/107:00 am -
1 stop5h 45m
Deal found 11/5![Southwest logo]()
$397
This United Airlines deal was found by Cheapflights users on 11/5. 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.
Thu 12/314:28 pm -
1 stop8h 52m
Mon 1/46:00 am -
1 stop6h 38m
Deal found 11/5![United Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:35 pm -
2 stops16h 38m
Wed 12/911:59 pm -
1 stop31h 09m
Deal found 11/6![Multiple Airlines logo]()
$407
This Southwest deal was found by Cheapflights users on 11/5. 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.
Mon 12/1412:45 pm -
1 stop8h 40m
Fri 12/181:30 pm -
2 stops8h 25m
Deal found 11/5![Southwest logo]()
$427
This Delta deal was found by Cheapflights users on 11/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:00 am -
1 stop7h 19m
Wed 12/92:31 pm -
1 stop7h 02m
Deal found 11/6![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 11/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:49 pm -
2 stops12h 25m
Mon 12/147:05 am -
1 stop6h 15m
Deal found 11/9![Delta logo]()
$434
Best flights from Portland to DenverDiscover carefully curated flight deals from Portland to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
Discover carefully curated flight deals from Portland to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
This United Airlines deal was found by Cheapflights users on 11/5. 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.
Thu 12/314:28 pm -
1 stop8h 52m
Mon 1/46:00 am -
1 stop6h 38m
Deal found 11/5![United Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 11/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/203:05 pm -
1 stop8h 36m
Sat 2/276:05 am -
1 stop6h 18m
Deal found 11/6![Delta logo]()
$429
This Southwest deal was found by Cheapflights users on 11/5. 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 3/165:20 pm -
1 stop7h 05m
Tue 3/235:20 am -
1 stop6h 30m
Deal found 11/5![Southwest logo]()
$429
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1111:25 am -
1 stop7h 01m
Mon 3/2212:20 pm -
1 stop9h 29m
Deal found 11/5![Delta logo]()
$429
This Southwest deal was found by Cheapflights users on 11/9. 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.
Thu 1/145:30 am -
1 stop10h 10m
Mon 1/185:00 am -
1 stop5h 40m
Deal found 11/9![Southwest logo]()
$434
This Delta deal was found by Cheapflights users on 11/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/3012:50 pm -
1 stop6h 40m
Tue 5/412:20 pm -
1 stop9h 29m
Deal found 11/8![Delta logo]()
$429
This Southwest deal was found by Cheapflights users on 11/9. 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 12/153:25 pm -
1 stop8h 25m
Sun 12/206:55 pm -
1 stop12h 55m
Deal found 11/9![Southwest logo]()
$434
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/295:30 am -
1 stop9h 40m
Sun 1/317:00 am -
1 stop7h 26m
Deal found 11/5![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2811:25 am -
1 stop7h 01m
Sun 4/47:00 am -
1 stop7h 59m
Deal found 11/5![Delta logo]()
$429
Last-minute flights from Portland to DenverDiscover last-minute flight deals from Portland to Denver. Data last updated November 10, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Denver. Data last updated November 10, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 11/5. 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.
Thu 12/35:15 am -
2 stops9h 55m
Thu 12/107:00 am -
1 stop5h 45m
Deal found 11/5![Southwest logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:35 pm -
2 stops16h 38m
Wed 12/911:59 pm -
1 stop31h 09m
Deal found 11/6![Multiple Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 11/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:00 am -
1 stop7h 19m
Wed 12/92:31 pm -
1 stop7h 02m
Deal found 11/6![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 11/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:49 pm -
2 stops12h 25m
Mon 12/147:05 am -
1 stop6h 15m
Deal found 11/9![Delta logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1212:28 pm -
1 stop8h 42m
Tue 12/156:41 am -
2 stops27h 07m
Deal found 11/5![Multiple Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 11/5. 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.
Sat 12/121:00 pm -
1 stop6h 30m
Tue 12/157:00 am -
1 stop5h 45m
Deal found 11/5![Southwest logo]()
$377
This Southwest deal was found by Cheapflights users on 11/5. 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.
Mon 12/1412:45 pm -
1 stop8h 40m
Fri 12/181:30 pm -
2 stops8h 25m
Deal found 11/5![Southwest logo]()
$427
This United Airlines deal was found by Cheapflights users on 11/5. 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.
Thu 12/314:28 pm -
1 stop8h 52m
Mon 1/46:00 am -
1 stop6h 38m
Deal found 11/5![United Airlines logo]()
$403
One-way flights from Portland to DenverSearch for one-way flight options from Portland to Denver. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
Search for one-way flight options from Portland to Denver. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/167:12 pm -
3 stops48h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Multiple Airlines logo]()
$179
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/193:38 pm -
1 stop10h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![United Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 11/8. 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.
Mon 12/75:35 pm -
3 stops28h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Multiple Airlines logo]()
$192
This Southwest deal was found by Cheapflights users on 11/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:25 am -
1 stop9h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Southwest logo]()
$215
This Southwest deal was found by Cheapflights users on 11/5. 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.
Sat 12/195:25 pm -
2 stops9h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Southwest logo]()
$220
This Southwest deal was found by Cheapflights users on 11/9. 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.
Thu 12/2410:25 am -
1 stop9h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Southwest logo]()
$249
This Southwest deal was found by Cheapflights users on 11/5. 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.
Mon 11/235:20 am -
1 stop7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Southwest logo]()
$250
This American Airlines deal was found by Cheapflights users on 11/7. 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.
Mon 12/213:29 pm -
2 stops11h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![American Airlines logo]()
$254
This United Airlines deal was found by Cheapflights users on 11/7. 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.
Mon 12/214:28 pm -
1 stop8h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![United Airlines logo]()
$279
Find flight deals from Portland to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Denver (DEN). 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 November 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $341 (Kiwi.com) |
One-way from | $179 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $439 |
Good round-trip deal | $499 or less |
Good one-way deal | $310 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Denver 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 7,457,451 searches. Data last updated November 10, 2026.
Use the filters below to find and compare flights from Portland to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandDenver
PWM Portland - DEN Denver Intl
PWMDEN
Portland
Sat 12/19
3:38 pm-11:50 pm
1 stop10h 12m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$189
PortlandDenver
PWM Portland - DEN Denver Intl
PWMDEN
Portland
Sat 12/19
5:25 pm-12:30 am
1 stop9h 05m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$215
Quickest round-trip
PortlandDenver
PWM Portland - DEN Denver Intl
PWMDEN
Portland
Fri 12/18
5:25 am-10:00 am
1 stop6h 35m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$215
PortlandDenver
PWM Portland - DEN Denver Intl
PWMDEN
Portland
Wed 12/16
10:25 am-6:50 pm
2 stops10h 25m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$220
PortlandDenver
PWM Portland - DEN Denver Intl
PWMDEN
Portland
Thu 11/26
5:15 am-10:15 am
1 stop7h 00m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$250
PortlandDenver
PWM Portland - DEN Denver Intl
PWMDEN
Portland
Mon 11/23
5:20 am-10:30 am
1 stop7h 10m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$250
PortlandDenver
PWM Portland - DEN Denver Intl
PWMDEN
Portland
Fri 12/25
5:15 am-1:10 pm
2 stops9h 55m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$254
PortlandDenver
PWM Portland - DEN Denver Intl
PWMDEN
Portland
Thu 12/31
4:28 pm-11:20 pm
1 stop8h 52m
Denver Intl
Mon 1/4
6:00 am-2:38 pm
1 stop6h 38m
$403
PortlandDenver
PWM Portland - DEN Denver Intl
PWMDEN
Portland
Sat 2/20
3:05 pm-9:41 pm
1 stop8h 36m
Denver Intl
Sat 2/27
6:05 am-2:23 pm
1 stop6h 18m
$429
PortlandDenver
PWM Portland - DEN Denver Intl
PWMDEN
Portland
Tue 3/16
5:20 pm-10:25 pm
1 stop7h 05m
Denver Intl
Tue 3/23
5:20 am-1:50 pm
1 stop6h 30m
$429
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Portland to Denver
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 Portland to Denver in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland, Maine-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland, Maine-Denver 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 Portland, Maine-Denver 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 Portland to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Portland with our price prediction graph.
PWM-DEN
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 Portland to Denver
Prices
Airlines
How far ahead should I book a flight from Portland, Maine to Denver?
Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland, Maine to Denver. 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 Portland, Maine to Denver?
Currently, February is the cheapest month in which you can book a flight from Portland, Maine to Denver (average of $389). Flying from Portland, Maine to Denver in June is currently the most expensive (average of $599). 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 PWM to DEN?
Find hourly flight availability from Portland to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 10, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to Denver as you normally would.
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated November 10, 2026.
Read through reviews of airlines operating flights from Portland to Denver, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Crew
8.6
Entertainment
7.4
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Crew
8.6
Entertainment
7.4
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Crew
8.6
Entertainment
7.4
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Crew
8.6
Entertainment
7.4
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Crew
8.6
Entertainment
7.4
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Crew
8.6
Entertainment
7.4
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Portland to Denver. 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 Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Westminster
Lakewood
Centennial
Broomfield
Englewood
Golden
Silverthorne
Fort Morgan
Limon
Greeley
Frisco
Winter Park
Wheat Ridge
Black Hawk
Central City
Manitou Springs
Glendale
Cripple Creek
Evergreen
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
Complete your trip to Denver by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Denver
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 10, 2026.
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Find flights from Portland to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Denver flights
Browse other Portland and Denver flight options. Last updated on November 10, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on November 10, 2026.
Popular flight searches
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Top 5 airlines flying from Portland to Denver
Discover the top 5 airlines that operate flights from Portland to Denver. 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 7,457,451 searches. Data last updated November 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$164 | Average$452 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$269 | Average$447 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$306 | Average$413 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$322 | Average$497 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$338 | Average$511 | FlexibilityNo cancel fee | On-time69% |