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$72+ Cheap flights from Oakland, CA to Denver (OAK - DEN)

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
OAK — DEN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Oakland to Denver Intl are usually found in February or April, booked 69 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Oakland to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Oakland (OAK) 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 September 15, 2025.

Round-trip from

$157
(Southwest)

One-way from

$72
(Southwest)

Popular in

November

Cheapest in

February

Average price

$348

Good round-trip deal

$315 or less

Good one-way deal

$193 or less
From Oakland to Denver Intl
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One-way flight from Oakland to Denver Intl
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Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Oakland to Denver Intl.
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Price to beat on a one-way flight from Oakland to Denver Intl.
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Find flight deals from Oakland to Denver

Cheapest flights from Oakland to Denver
Explore the most affordable flight options available from Oakland to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Southwest deal was found by Cheapflights users on 9/13. 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 10/237:50 pmOAK - DEN
Nonstop2h 25mSouthwest
Mon 10/2710:30 pmDEN - OAK
Nonstop2h 35mSouthwest
Deal found 9/13$157
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Thu 10/26:30 amOAK - DEN
1 stop20h 30mMultiple Airlines
Fri 10/310:29 pmDEN - OAK
1 stop12h 32mMultiple Airlines
Deal found 9/12$163
This Southwest deal was found by Cheapflights users on 9/12. 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.
Wed 10/15:00 pmOAK - DEN
Nonstop2h 25mSouthwest
Tue 10/71:20 pmDEN - OAK
Nonstop2h 35mSouthwest
Deal found 9/12$171
This Southwest deal was found by Cheapflights users on 9/14. 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.
Fri 11/148:00 pmOAK - DEN
Nonstop2h 25mSouthwest
Sat 11/156:50 pmDEN - OAK
Nonstop2h 40mSouthwest
Deal found 9/14$177
This Southwest deal was found by Cheapflights users on 9/14. 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 11/68:00 pmOAK - DEN
Nonstop2h 25mSouthwest
Sun 11/97:50 amDEN - OAK
1 stop4h 50mSouthwest
Deal found 9/14$187
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 9/296:30 amOAK - DEN
1 stop20h 30mMultiple Airlines
Fri 10/310:29 pmDEN - OAK
1 stop12h 32mMultiple Airlines
Deal found 9/14$190
This Southwest deal was found by Cheapflights users on 9/12. 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 11/82:05 pmOAK - DEN
1 stop5h 15mSouthwest
Tue 11/118:10 amDEN - OAK
1 stop4h 30mSouthwest
Deal found 9/12$192

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oakland 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 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Oakland to Denver that are best for you.

Fly from

Oakland

Fly to

Denver

Route

Depart

Return

Price

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Thu 10/23

7:50 pm-11:15 pm

Nonstop2h 25m

Denver Intl

Mon 10/27

10:30 pm-12:05 am

Nonstop2h 35m

$157

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Sat 11/8

2:05 pm-8:20 pm

1 stop5h 15m

Denver Intl

Tue 11/11

8:10 am-11:40 am

1 stop4h 30m

$192

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Mon 10/13

7:50 pm-11:15 pm

Nonstop2h 25m

Denver Intl

Mon 10/20

10:30 pm-12:05 am

Nonstop2h 35m

$197

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Mon 11/10

5:35 am-9:05 am

Nonstop2h 30m

Denver Intl

Sat 11/15

9:35 am-2:50 pm

2 stops6h 15m

$201

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Tue 3/3

10:10 am-7:19 pm

1 stop8h 09m

Denver Intl

Wed 3/4

7:00 am-5:43 pm

1 stop11h 43m

$204

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Fri 10/24

7:50 pm-11:15 pm

Nonstop2h 25m

Denver Intl

Sun 10/26

7:50 am-11:45 am

1 stop4h 55m

$207

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Wed 10/1

12:35 pm-6:00 pm

1 stop4h 25m

Denver Intl

Fri 10/10

10:30 pm-12:05 am

Nonstop2h 35m

$221

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Mon 10/13

7:50 pm-11:15 pm

Nonstop2h 25m

Denver Intl

Fri 10/17

5:40 am-9:20 am

1 stop4h 40m

$225

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Mon 10/20

7:50 pm-11:15 pm

Nonstop2h 25m

Denver Intl

Thu 10/23

10:30 pm-12:05 am

Nonstop2h 35m

$227

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Wed 12/10

12:35 pm-4:00 pm

Nonstop2h 25m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 20 results
1
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The best insider tips for Oakland to Denver flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Oakland to Denver trip
Airports
OAK

For a smooth departure from OAK, use BART for cost-efficient transit to San Francisco, avoiding potential Bay Bridge traffic delays.

Read more about OAKby Bill Fink
DEN

Use the A Line train from DEN to reach downtown Denver in 37 minutes, running every 15 minutes for convenience.

Read more about DENby Emily Zemler
Our travel experts
Bill Fink

Bill Fink

Expert on OAK

Bill Fink

Bill Fink

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Best time to book a flight from Oakland to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Oakland 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.

Cheapflights Insights

Everything you need to know about your flight from Oakland to Denver

How far ahead should I book a flight from Oakland, California to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Oakland to Denver. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Oakland, California to Denver, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Oakland, California to Denver?

Currently, October is the cheapest month in which you can book a flight from Oakland, California to Denver (average of $197). Flying from Oakland, California to Denver in March is currently the most expensive (average of $278). 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 OAK to DEN?

Find hourly flight availability from Oakland 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 September 15, 2025.

It’s optimal to fly from Oakland, California to Denver in the evening. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Oakland, California to Denver?

Use this chart to determine the cheapest time to fly round-trip from Oakland to Denver. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Oakland, California to Denver flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 September 15, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Oakland to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,956 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,931 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Allegiant Air
7.2
Good
699 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

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

  • What airports do I use to fly from Oakland to Denver?

    If you wish to fly to Denver from Oakland, then you need to book flights from Oakland to Denver Intl. There are 7 flights from Oakland (OAK) to Denver Intl (DEN) per day to choose from. Flights to Denver from Oakland are available from 6 different airlines, which means you should have some options if you want to compare airfare deals. 2h 25m is how long a nonstop flight from Oakland to Denver Intl typically takes.

  • How popular is this Oakland, California to Denver flight route?

    Within the past month, 24 users have taken a look at flights from Oakland to Denver Intl.

  • How long is the flight from Oakland, California to Denver?

    Departing from Oakland, California to Denver will take you 2h 25m. Airlines will cover a distance of 954 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from Oakland, California to Denver round-trip?

    Flying on Allegiant Air is currently your cheapest option to Denver, with prices starting at $88. Additional round-trip tickets that might be worth considering are offered by Frontier and Southwest, with the lowest prices starting at $88 and $182, respectively. You may be able to fly from Oakland, California to Denver for 72% less than the average price by searching for these airlines.

  • What are the cheapest flights from Oakland, California to Denver?

    The cheapest flight price from Oakland, California to Denver is $128. On average you can expect to pay $322. The most popular route, (Oakland - Denver Intl), can usually be booked for $145.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Oakland, California to Denver?

    Currently, October is the cheapest month in which you can book a flight from Oakland, California to Denver (average of $197). Flying from Oakland, California to Denver in March is currently the most expensive (average of $278). 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.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Golden
Winter Park
Lakewood
Broomfield
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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Top 6 airlines flying from Oakland to Denver

Discover the top 6 airlines that operate flights from Oakland 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 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$88Average$156FlexibilityNo cancel feeOn-time88%
FrontierCheapest$88Average$193FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$182Average$335FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$208Average$297FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$349FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$233Average$355FlexibilityNo cancel feeOn-time75%

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