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$376+ Cheap flights from Denver to Petersburg, AK (DEN - PSG)

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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PSG
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Denver to Petersburg

Cheapest flights from Denver to Petersburg
Explore the most affordable flight options available from Denver to Petersburg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:00 am
DEN
-
PSG
3 stops29h 54m
Alaska Airlines
Sun 2/223:18 pm
PSG
-
DEN
3 stops30h 41m
Alaska Airlines
Deal found 1/25$548
This Alaska Airlines deal was found by Cheapflights users on 1/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/87:00 am
DEN
-
PSG
3 stops30h 00m
Alaska Airlines
Mon 2/233:18 pm
PSG
-
DEN
3 stops28h 05m
Alaska Airlines
Deal found 1/25$652
This Alaska Airlines deal was found by Cheapflights users on 1/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/105:09 pm
DEN
-
PSG
2 stops23h 12m
Alaska Airlines
Sun 2/223:18 pm
PSG
-
DEN
3 stops30h 41m
Alaska Airlines
Deal found 1/25$658
This Alaska Airlines deal was found by Cheapflights users on 1/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/87:00 am
DEN
-
PSG
2 stops33h 21m
Alaska Airlines
Fri 2/203:18 pm
PSG
-
DEN
3 stops25h 38m
Alaska Airlines
Deal found 1/25$659
This Alaska Airlines deal was found by Cheapflights users on 1/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/97:00 am
DEN
-
PSG
2 stops33h 21m
Alaska Airlines
Fri 2/2011:36 am
PSG
-
DEN
2 stops34h 23m
Alaska Airlines
Deal found 1/25$667
This Alaska Airlines deal was found by Cheapflights users on 1/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/61:37 pm
DEN
-
PSG
3 stops23h 23m
Alaska Airlines
Mon 2/233:18 pm
PSG
-
DEN
3 stops28h 05m
Alaska Airlines
Deal found 1/25$692

Find flight deals from Denver to Petersburg

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Petersburg (PSG). 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$548
(Alaska Airlines)

One-way from

$376
(Alaska Airlines)
Provider with most accurate pricing for Denver Intl-Petersburg flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Petersburg flights.
Search Deals
From Denver Intl to Petersburg
Search Deals
One-way flight from Denver Intl to Petersburg
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Petersburg 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 January 27, 2026.
Use the filters below to find and compare flights from Denver to Petersburg that are best for you.

Fly from

Denver

Fly to

Petersburg

Route

Depart

Return

Price

DenverPetersburg

DEN - PSG

DENPSG

Denver Intl

Wed 2/18

7:00 am-10:54 am

3 stops29h 54m

Petersburg

Sun 2/22

3:18 pm-11:59 pm

3 stops30h 41m

$548

DenverPetersburg

DEN - PSG

DENPSG

Denver Intl

Sun 2/8

7:00 am-11:00 am

3 stops30h 00m

Petersburg

Sat 2/21

3:18 pm-6:56 pm

3 stops25h 38m

$652

DenverPetersburg

DEN - PSG

DENPSG

Denver Intl

Thu 2/12

7:00 am-10:54 am

3 stops29h 54m

Petersburg

Sat 2/21

3:18 pm-11:59 pm

3 stops30h 41m

$652

DenverPetersburg

DEN - PSG

DENPSG

Denver Intl

Mon 2/9

7:00 am-11:00 am

3 stops30h 00m

Petersburg

Sat 2/21

3:18 pm-11:59 pm

3 stops30h 41m

$652

DenverPetersburg

DEN - PSG

DENPSG

Denver Intl

Wed 2/11

7:00 am-10:54 am

3 stops29h 54m

Petersburg

Thu 2/19

3:18 pm-11:59 pm

3 stops30h 41m

$652

DenverPetersburg

DEN - PSG

DENPSG

Denver Intl

Thu 5/21

7:40 am-2:44 pm

2 stops33h 04m

$376

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Compare providers for flights from Denver to Petersburg

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 Petersburg in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Petersburg, Alaska flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Petersburg, Alaska flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Petersburg, Alaska flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Petersburg, Alaska 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-Petersburg, Alaska 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 Petersburg

Have a flexible travel schedule? Discover the best time to fly to Petersburg from Denver with our price prediction graph.
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.

Reviews of airlines servicing Petersburg

Get insights into the airlines that provide service to Petersburg. 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 Petersburg. Reviews last updated January 27, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines from Denver to Petersburg 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.
Alaska Airlines
8.0
Very good
11,795 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,795 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from Denver to Petersburg. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Denver to Petersburg, Alaska?

    A quick flight from Denver to Petersburg, Alaska can take about 29h 54m. Alaska Airlines provides one of the quickest options available for as low as $548. Airlines will cover a distance of 1724 mi.

  • What is the cheapest airline to fly from Denver to Petersburg, Alaska round-trip?

    Cheapflights users have booked flights from Denver to Petersburg, Alaska round-trip from $660.

  • Can I find deals for flights from Denver to Petersburg that include hotel bookings?

    Yes. In addition to deals on Denver to Petersburg flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Petersburg?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Petersburg.

  • Can I find deals for business class flights from Denver to Petersburg?

    Yes. Cheapflights offers flight deals from Denver to Petersburg by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Denver to Petersburg

Discover the top airline that operate flights from Denver to Petersburg. 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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$660Average$1,057FlexibilityNo cancel feeOn-time75%

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