Find Cheap Flights from Portland to Denver International (PDX - DEN)

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Wed 1/17
Wed 1/24
Any month
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Good to Know

Low Season:
January
Best time to beat the crowds
2%
expected price decrease
High Season:
December
Most popular time to fly
3%
expected price increase
Average Price:
$233
(avg. price over the last 2 weeks)
Good Deal:
$158
or less (round trip)

When to Book Flights from Portland to Denver International

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $157 or less.
The cheapest flight from Portland to Denver International was found 22 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
Morning departure is around 6% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Portland to Denver International Flights

How long does a flight from Portland to Denver International take?
An average nonstop flight takes 2h 30m, covering a distance of 989 miles.
How many flights are there between Portland and Denver International?
There are 170 (nonstop) flights between Portland and Denver International per week, averaging 25 per day.
Which airlines provide the cheapest flights from Portland to Denver International?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($77)
Do I need a passport to fly between Portland and Denver International?
No.
Which airlines fly most frequently between Portland and Denver International?
United (12 times daily), Lufthansa (5 times daily), Southwest (4 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Portland to Denver International?
For Portland to Denver International, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Denver International back to Portland, the best deals are generally found on Tuesday, with Saturday being the most expensive.

Book cheap flights from Portland to Denver International (round-trip)

Airports
Origin
Portland
$77
only
$77
Destination
Denver
$77
only
$77
Tue, Jan 23
PDX
DEN
2h 33m
Tue, Jan 30
DEN
PDX
2h 55m
Trip: 8 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Mediocre 3.3

Considering you paid for luggage, no complimentary beverage service and attendants whom expected "team" work to clean the plane, this was the worst example of customer service I have experienced. I travel frequently and very disappointed in Frontier's service and comfort. The space between seats were uncomfortable for a couple of half marathoners. Again quite disappointed and will be avoiding Frontier in the future, no matter the perceived savings.

PDX
DEN
Mediocre 3.6

Terribly long bag drop line. Also very slow to get bags at baggage claim. Overall mediocre flight. Will never fly them for any flights longer than 2 hours. A lot of nickel and diming with these folks.

PDX
DEN
Excellent 9.0

That we did not crash and I did not die! PTL

You pay for everything on a menu style way. Peanuts, soda, luggage and seat choice all extras. Then we got to Denver and they lost about 10 peoples' luggage. They could not find it for 45 minutes and then I found it on the wrong carousel going round and round! Very dissatisfied with the luggage mess in Denver on flight 802 September 10!

PDX
DEN
Good 6.0

Boarding went quickly.

The online check wasn’t working so I went to the desk. Which was fine, but the desk clerk was VERY rude. Not just to me but other passengers as well.

PDX
DEN
Mediocre 3.0

The flight was delayed over two hours, the crew was pretty nice though

Tue, Mar 6
PDX
DEN
2h 37m
Tue, Mar 13
DEN
PDX
2h 50m
Trip: 7 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Good 6.0

The price was great and the crew was nice.

No food, no entertainment, seats don't recline in an airbus A319 or A320 apparently.

PDX
DEN
Mediocre 3.3

Considering you paid for luggage, no complimentary beverage service and attendants whom expected "team" work to clean the plane, this was the worst example of customer service I have experienced. I travel frequently and very disappointed in Frontier's service and comfort. The space between seats were uncomfortable for a couple of half marathoners. Again quite disappointed and will be avoiding Frontier in the future, no matter the perceived savings.

PDX
DEN
Okay 4.6

Smooth flight once we got in the air

Flight delayed almost 4 hours

PDX
DEN
Mediocre 3.6

how many hidden fees -- seats, baggage -- could they come up with... well $50 worth!

PDX
DEN
Okay 4.0

Cheap flight, quick boarding.

Cramped accommodation, extra fees for luggage, no complimentary beverage service. I’d call it the Grey Hound of the air, except I recently took a Grey Hound and I was much more comfortable.

Mon, Apr 9
PDX
DEN
2h 35m
Wed, Apr 11
DEN
PDX
2h 49m
Trip: 3 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Good 6.0

The price was great and the crew was nice.

No food, no entertainment, seats don't recline in an airbus A319 or A320 apparently.

PDX
DEN
Okay 4.0

Cheap flight, quick boarding.

Cramped accommodation, extra fees for luggage, no complimentary beverage service. I’d call it the Grey Hound of the air, except I recently took a Grey Hound and I was much more comfortable.

PDX
DEN
Mediocre 3.6

how many hidden fees -- seats, baggage -- could they come up with... well $50 worth!

PDX
DEN
Mediocre 3.0

The flight was delayed over two hours, the crew was pretty nice though

PDX
DEN
Mediocre 3.3

Considering you paid for luggage, no complimentary beverage service and attendants whom expected "team" work to clean the plane, this was the worst example of customer service I have experienced. I travel frequently and very disappointed in Frontier's service and comfort. The space between seats were uncomfortable for a couple of half marathoners. Again quite disappointed and will be avoiding Frontier in the future, no matter the perceived savings.

Tue, Jun 12
PDX
DEN
2h 41m
Wed, Jun 13
DEN
PDX
2h 40m
Trip: 2 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Excellent 9.0

That we did not crash and I did not die! PTL

You pay for everything on a menu style way. Peanuts, soda, luggage and seat choice all extras. Then we got to Denver and they lost about 10 peoples' luggage. They could not find it for 45 minutes and then I found it on the wrong carousel going round and round! Very dissatisfied with the luggage mess in Denver on flight 802 September 10!

PDX
DEN
Okay 4.0

Cheap flight, quick boarding.

Cramped accommodation, extra fees for luggage, no complimentary beverage service. I’d call it the Grey Hound of the air, except I recently took a Grey Hound and I was much more comfortable.

PDX
DEN
Mediocre 2.0

Didn't like a single thing.

Your horrible gate lady in Denver made us miss a flight because she decided to charge us $90 for 2 Carry on bags

PDX
DEN
Mediocre 3.6

Terribly long bag drop line. Also very slow to get bags at baggage claim. Overall mediocre flight. Will never fly them for any flights longer than 2 hours. A lot of nickel and diming with these folks.

PDX
DEN
Mediocre 3.0

The flight was delayed over two hours, the crew was pretty nice though

Tue, Mar 6
PDX
DEN
2h 37m
Tue, Mar 13
DEN
PDX
2h 50m
Trip: 7 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Okay 4.6

Smooth flight once we got in the air

Flight delayed almost 4 hours

PDX
DEN
Mediocre 3.0

The flight was delayed over two hours, the crew was pretty nice though

PDX
DEN
Mediocre 2.0

I showed up an hour before my flight with no luggage to check or carry on. The line to TSA was almost nonexistent and the gate was close. The auto check in told me to go to frontiers desk to check in. No one was at any of the frontier check in counters event though every other airline had at least one person at theirs. There was a sign that said I was too late to redeem my ticket due to a 45 minute rule that wasn't mentioned anywhere in my flight itinerary or multiple emails from kayak and frontier. No one at the airport could help me without a frontier representative, they didn't answer my call to their 800 number and I missed my best friend's fathers funeral.

PDX
DEN
Mediocre 3.6

Terribly long bag drop line. Also very slow to get bags at baggage claim. Overall mediocre flight. Will never fly them for any flights longer than 2 hours. A lot of nickel and diming with these folks.

PDX
DEN
Excellent 9.0

That we did not crash and I did not die! PTL

You pay for everything on a menu style way. Peanuts, soda, luggage and seat choice all extras. Then we got to Denver and they lost about 10 peoples' luggage. They could not find it for 45 minutes and then I found it on the wrong carousel going round and round! Very dissatisfied with the luggage mess in Denver on flight 802 September 10!

Tue, May 8
PDX
DEN
2h 41m
Tue, May 15
DEN
PDX
2h 41m
Trip: 8 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Okay 4.6

Smooth flight once we got in the air

Flight delayed almost 4 hours

PDX
DEN
Mediocre 3.0

The flight was delayed over two hours, the crew was pretty nice though

PDX
DEN
Good 6.0

The price was great and the crew was nice.

No food, no entertainment, seats don't recline in an airbus A319 or A320 apparently.

PDX
DEN
Mediocre 2.0

Didn't like a single thing.

Your horrible gate lady in Denver made us miss a flight because she decided to charge us $90 for 2 Carry on bags

PDX
DEN
Okay 4.0

Cheap flight, quick boarding.

Cramped accommodation, extra fees for luggage, no complimentary beverage service. I’d call it the Grey Hound of the air, except I recently took a Grey Hound and I was much more comfortable.

Wed, Feb 28
PDX
DEN
2h 30m
Tue, Mar 6
DEN
PDX
2h 50m
Trip: 7 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Mediocre 3.6

how many hidden fees -- seats, baggage -- could they come up with... well $50 worth!

PDX
DEN
Okay 4.6

Smooth flight once we got in the air

Flight delayed almost 4 hours

PDX
DEN
Mediocre 2.0

Fees, cramped space, cleanliness

PDX
DEN
Okay 4.0

Cheap flight, quick boarding.

Cramped accommodation, extra fees for luggage, no complimentary beverage service. I’d call it the Grey Hound of the air, except I recently took a Grey Hound and I was much more comfortable.

PDX
DEN
Mediocre 3.6

Terribly long bag drop line. Also very slow to get bags at baggage claim. Overall mediocre flight. Will never fly them for any flights longer than 2 hours. A lot of nickel and diming with these folks.

Thu, Jan 25
PDX
DEN
2h 33m
Sun, Jan 28
DEN
PDX
2h 55m
Trip: 4 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Mediocre 3.3

Considering you paid for luggage, no complimentary beverage service and attendants whom expected "team" work to clean the plane, this was the worst example of customer service I have experienced. I travel frequently and very disappointed in Frontier's service and comfort. The space between seats were uncomfortable for a couple of half marathoners. Again quite disappointed and will be avoiding Frontier in the future, no matter the perceived savings.

PDX
DEN
Good 6.0

The price was great and the crew was nice.

No food, no entertainment, seats don't recline in an airbus A319 or A320 apparently.

PDX
DEN
Mediocre 3.6

how many hidden fees -- seats, baggage -- could they come up with... well $50 worth!

PDX
DEN
Mediocre 2.0

Fees, cramped space, cleanliness

PDX
DEN
Okay 4.6

Smooth flight once we got in the air

Flight delayed almost 4 hours

Wed, Apr 18
PDX
DEN
2h 35m
Sun, Apr 22
DEN
PDX
2h 47m
Trip: 5 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Mediocre 3.3

Considering you paid for luggage, no complimentary beverage service and attendants whom expected "team" work to clean the plane, this was the worst example of customer service I have experienced. I travel frequently and very disappointed in Frontier's service and comfort. The space between seats were uncomfortable for a couple of half marathoners. Again quite disappointed and will be avoiding Frontier in the future, no matter the perceived savings.

PDX
DEN
Good 6.0

Boarding went quickly.

The online check wasn’t working so I went to the desk. Which was fine, but the desk clerk was VERY rude. Not just to me but other passengers as well.

PDX
DEN
Mediocre 2.0

Fees, cramped space, cleanliness

PDX
DEN
Mediocre 3.6

Terribly long bag drop line. Also very slow to get bags at baggage claim. Overall mediocre flight. Will never fly them for any flights longer than 2 hours. A lot of nickel and diming with these folks.

PDX
DEN
Mediocre 2.0

I showed up an hour before my flight with no luggage to check or carry on. The line to TSA was almost nonexistent and the gate was close. The auto check in told me to go to frontiers desk to check in. No one was at any of the frontier check in counters event though every other airline had at least one person at theirs. There was a sign that said I was too late to redeem my ticket due to a 45 minute rule that wasn't mentioned anywhere in my flight itinerary or multiple emails from kayak and frontier. No one at the airport could help me without a frontier representative, they didn't answer my call to their 800 number and I missed my best friend's fathers funeral.

Tue, May 8
PDX
DEN
2h 41m
Sat, May 12
DEN
PDX
2h 39m
Trip: 5 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Okay 4.6

Smooth flight once we got in the air

Flight delayed almost 4 hours

PDX
DEN
Mediocre 3.0

The flight was delayed over two hours, the crew was pretty nice though

PDX
DEN
Good 6.0

Boarding went quickly.

The online check wasn’t working so I went to the desk. Which was fine, but the desk clerk was VERY rude. Not just to me but other passengers as well.

PDX
DEN
Mediocre 3.3

Considering you paid for luggage, no complimentary beverage service and attendants whom expected "team" work to clean the plane, this was the worst example of customer service I have experienced. I travel frequently and very disappointed in Frontier's service and comfort. The space between seats were uncomfortable for a couple of half marathoners. Again quite disappointed and will be avoiding Frontier in the future, no matter the perceived savings.

PDX
DEN
Excellent 9.0

That we did not crash and I did not die! PTL

You pay for everything on a menu style way. Peanuts, soda, luggage and seat choice all extras. Then we got to Denver and they lost about 10 peoples' luggage. They could not find it for 45 minutes and then I found it on the wrong carousel going round and round! Very dissatisfied with the luggage mess in Denver on flight 802 September 10!

Tue, Jul 10
PDX
DEN
2h 37m
Tue, Jul 17
DEN
PDX
2h 38m
Trip: 8 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Okay 4.0

Cheap flight, quick boarding.

Cramped accommodation, extra fees for luggage, no complimentary beverage service. I’d call it the Grey Hound of the air, except I recently took a Grey Hound and I was much more comfortable.

PDX
DEN
Mediocre 3.6

Terribly long bag drop line. Also very slow to get bags at baggage claim. Overall mediocre flight. Will never fly them for any flights longer than 2 hours. A lot of nickel and diming with these folks.

PDX
DEN
Good 6.0

Boarding went quickly.

The online check wasn’t working so I went to the desk. Which was fine, but the desk clerk was VERY rude. Not just to me but other passengers as well.

PDX
DEN
Good 6.0

The price was great and the crew was nice.

No food, no entertainment, seats don't recline in an airbus A319 or A320 apparently.

PDX
DEN
Mediocre 3.3

Considering you paid for luggage, no complimentary beverage service and attendants whom expected "team" work to clean the plane, this was the worst example of customer service I have experienced. I travel frequently and very disappointed in Frontier's service and comfort. The space between seats were uncomfortable for a couple of half marathoners. Again quite disappointed and will be avoiding Frontier in the future, no matter the perceived savings.

Mon, Jul 16
PDX
DEN
2h 37m
Tue, Jul 24
DEN
PDX
2h 38m
Trip: 9 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Excellent 9.0

That we did not crash and I did not die! PTL

You pay for everything on a menu style way. Peanuts, soda, luggage and seat choice all extras. Then we got to Denver and they lost about 10 peoples' luggage. They could not find it for 45 minutes and then I found it on the wrong carousel going round and round! Very dissatisfied with the luggage mess in Denver on flight 802 September 10!

PDX
DEN
Good 6.0

Boarding went quickly.

The online check wasn’t working so I went to the desk. Which was fine, but the desk clerk was VERY rude. Not just to me but other passengers as well.

PDX
DEN
Mediocre 3.6

Terribly long bag drop line. Also very slow to get bags at baggage claim. Overall mediocre flight. Will never fly them for any flights longer than 2 hours. A lot of nickel and diming with these folks.

PDX
DEN
Mediocre 3.3

Considering you paid for luggage, no complimentary beverage service and attendants whom expected "team" work to clean the plane, this was the worst example of customer service I have experienced. I travel frequently and very disappointed in Frontier's service and comfort. The space between seats were uncomfortable for a couple of half marathoners. Again quite disappointed and will be avoiding Frontier in the future, no matter the perceived savings.

PDX
DEN
Okay 4.6

Smooth flight once we got in the air

Flight delayed almost 4 hours

Fri, Jun 15
PDX
DEN
2h 44m
Wed, Jun 20
DEN
PDX
2h 39m
Trip: 6 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Okay 4.0

Cheap flight, quick boarding.

Cramped accommodation, extra fees for luggage, no complimentary beverage service. I’d call it the Grey Hound of the air, except I recently took a Grey Hound and I was much more comfortable.

PDX
DEN
Okay 4.6

Smooth flight once we got in the air

Flight delayed almost 4 hours

PDX
DEN
Excellent 9.0

That we did not crash and I did not die! PTL

You pay for everything on a menu style way. Peanuts, soda, luggage and seat choice all extras. Then we got to Denver and they lost about 10 peoples' luggage. They could not find it for 45 minutes and then I found it on the wrong carousel going round and round! Very dissatisfied with the luggage mess in Denver on flight 802 September 10!

PDX
DEN
Mediocre 2.0

Fees, cramped space, cleanliness

PDX
DEN
Good 6.0

Boarding went quickly.

The online check wasn’t working so I went to the desk. Which was fine, but the desk clerk was VERY rude. Not just to me but other passengers as well.

Wed, Jun 27
PDX
DEN
2h 41m
Mon, Jul 2
DEN
PDX
2h 38m
Trip: 6 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Mediocre 3.0

The flight was delayed over two hours, the crew was pretty nice though

PDX
DEN
Good 6.0

The price was great and the crew was nice.

No food, no entertainment, seats don't recline in an airbus A319 or A320 apparently.

PDX
DEN
Mediocre 3.6

how many hidden fees -- seats, baggage -- could they come up with... well $50 worth!

PDX
DEN
Good 6.0

Boarding went quickly.

The online check wasn’t working so I went to the desk. Which was fine, but the desk clerk was VERY rude. Not just to me but other passengers as well.

PDX
DEN
Mediocre 2.0

I showed up an hour before my flight with no luggage to check or carry on. The line to TSA was almost nonexistent and the gate was close. The auto check in told me to go to frontiers desk to check in. No one was at any of the frontier check in counters event though every other airline had at least one person at theirs. There was a sign that said I was too late to redeem my ticket due to a 45 minute rule that wasn't mentioned anywhere in my flight itinerary or multiple emails from kayak and frontier. No one at the airport could help me without a frontier representative, they didn't answer my call to their 800 number and I missed my best friend's fathers funeral.

Sat, Jun 30
PDX
DEN
2h 37m
Fri, Jul 6
DEN
PDX
2h 38m
Trip: 7 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 503 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PDX
DEN
Okay 4.6

Smooth flight once we got in the air

Flight delayed almost 4 hours

PDX
DEN
Mediocre 3.0

The flight was delayed over two hours, the crew was pretty nice though

PDX
DEN
Mediocre 2.0

Didn't like a single thing.

Your horrible gate lady in Denver made us miss a flight because she decided to charge us $90 for 2 Carry on bags

PDX
DEN
Mediocre 3.6

how many hidden fees -- seats, baggage -- could they come up with... well $50 worth!

PDX
DEN
Okay 4.0

Cheap flight, quick boarding.

Cramped accommodation, extra fees for luggage, no complimentary beverage service. I’d call it the Grey Hound of the air, except I recently took a Grey Hound and I was much more comfortable.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.

Portland to Denver International Flight Information

Avg. Flight Duration 2h 40m
Flights Arrive in Denver International
Flights Depart from Portland
Flight Price $77
Distance 989 miles
Airlines Frontier