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$99+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
OAK — DEN
Apr 26 — May 31
Sun 4/26
Sun 5/3
1 adult, Economy
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Find cheap flights from Oakland 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

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Cheapflights Tip: The best prices from Oakland to Denver Intl are usually found in January or October, booked 68 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap 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 March 27, 2026.

This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/223:18 pm
OAK
-
DEN
1 stop7h 41m
Alaska Airlines
Tue 4/281:02 pm
DEN
-
OAK
1 stop6h 37m
Alaska Airlines
Deal found 3/27$206
This Southwest deal was found by Cheapflights users on 3/26. 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 5/267:35 pm
OAK
-
DEN
Nonstop2h 25m
Southwest
Thu 5/288:40 am
DEN
-
OAK
1 stop4h 45m
Southwest
Deal found 3/26$207
This Southwest deal was found by Cheapflights users on 3/24. 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 4/2111:20 am
OAK
-
DEN
2 stops6h 00m
Southwest
Tue 4/288:30 pm
DEN
-
OAK
Nonstop2h 35m
Southwest
Deal found 3/24$208
This Delta deal was found by Cheapflights users on 3/23. 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.
Tue 4/1412:34 pm
OAK
-
DEN
1 stop7h 12m
Delta
Tue 4/216:27 pm
DEN
-
OAK
1 stop6h 27m
Delta
Deal found 3/23$211
This Southwest deal was found by Cheapflights users on 3/26. 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 4/2510:55 am
OAK
-
DEN
1 stop4h 45m
Southwest
Sat 5/22:45 pm
DEN
-
OAK
1 stop5h 15m
Southwest
Deal found 3/26$212
This Southwest deal was found by Cheapflights users on 3/24. 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 4/156:00 am
OAK
-
DEN
1 stop5h 20m
Southwest
Mon 4/207:40 pm
DEN
-
OAK
1 stop5h 15m
Southwest
Deal found 3/24$217
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 5/66:46 am
OAK
-
DEN
1 stop10h 39m
Alaska Airlines
Sat 5/91:02 pm
DEN
-
OAK
1 stop6h 13m
Alaska Airlines
Deal found 3/25$218
This Southwest deal was found by Cheapflights users on 3/22. 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 5/78:55 pm
OAK
-
DEN
Nonstop2h 25m
Southwest
Tue 5/125:10 pm
DEN
-
OAK
Nonstop2h 40m
Southwest
Deal found 3/22$219
This Southwest deal was found by Cheapflights users on 3/23. 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 5/48:55 pm
OAK
-
DEN
Nonstop2h 25m
Southwest
Sat 5/98:45 am
DEN
-
OAK
1 stop4h 40m
Southwest
Deal found 3/23$222
This Southwest deal was found by Cheapflights users on 3/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:35 pm
OAK
-
DEN
Nonstop2h 25m
Southwest
Sat 4/182:45 pm
DEN
-
OAK
1 stop5h 15m
Southwest
Deal found 3/25$223
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 5/410:57 am
OAK
-
DEN
1 stop12h 02m
Alaska Airlines
Wed 6/37:51 pm
DEN
-
OAK
1 stop4h 59m
Alaska Airlines
Deal found 3/25$224

Find 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 March 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$206
(CheapOair)

One-way from

$99
(Southwest)

Popular in

November

Cheapest in

January

Average price

$392

Good round-trip deal

$380 or less

Good one-way deal

$185 or less
Provider with most accurate pricing for Oakland-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Oakland-Denver Intl flights.
Search Deals
From Oakland to Denver Intl
Search Deals
One-way flight from Oakland to Denver Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Oakland to Denver Intl.
Search Deals
Price to beat on a one-way flight from Oakland to Denver Intl.
Search Deals

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 March 27, 2026.
Use the filters below to find and compare flights from Oakland to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Sat 4/25

10:55 am-4:40 pm

1 stop4h 45m

Denver Intl

Sat 5/2

2:45 pm-7:00 pm

1 stop5h 15m

$212

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Wed 5/6

3:18 pm-11:59 pm

1 stop7h 41m

Denver Intl

Fri 5/8

7:06 pm-10:17 am

1 stop16h 11m

$240

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Fri 5/1

5:45 pm-11:10 pm

1 stop4h 25m

Denver Intl

Mon 5/4

8:10 pm-12:05 am

1 stop4h 55m

$261

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Sat 4/25

6:46 am-6:25 pm

1 stop10h 39m

Denver Intl

Wed 4/29

6:45 am-10:23 pm

1 stop16h 38m

$267

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Thu 4/30

6:41 am-12:06 pm

1 stop4h 25m

Denver Intl

Mon 5/4

7:06 pm-10:17 am

1 stop16h 11m

$287
Quickest round-trip

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Tue 4/21

7:35 pm-11:00 pm

Nonstop2h 25m

Denver Intl

Thu 4/23

8:35 am-12:20 pm

1 stop4h 45m

$288

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Wed 5/13

11:20 am-6:20 pm

2 stops6h 00m

Denver Intl

Mon 5/18

6:50 pm-10:45 pm

1 stop4h 55m

$298

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Sat 5/2

6:46 am-6:25 pm

1 stop10h 39m

Denver Intl

Mon 5/4

7:06 pm-10:17 am

1 stop16h 11m

$301

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Mon 6/1

5:45 pm-11:10 pm

1 stop4h 25m

Denver Intl

Fri 6/5

5:50 am-10:10 am

1 stop5h 20m

$303

OaklandDenver

OAK - DEN

OAKDEN

Oakland

Fri 6/5

6:02 am-11:49 pm

1 stop16h 47m

Denver Intl

Mon 6/8

6:40 am-9:45 am

1 stop28h 05m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Oakland 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 Oakland to Denver in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Oakland, California-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Oakland, California-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Oakland, California-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Oakland, California-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 Oakland, California-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 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 March 13, 2026.

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, January is the cheapest month in which you can book a flight from Oakland, California to Denver (average of $58). Flying from Oakland, California to Denver in July is currently the most expensive (average of $107). 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 March 27, 2026.

It’s optimal to fly from Oakland, California to Denver in the evening. By choosing this option you can save up to 13% 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 March 23, 2026.

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

How much does it cost to fly round-trip from Oakland, California to Denver?

The best insider tips for Oakland to Denver flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Oakland to Denver trip
Our travel experts
Bill Fink

Bill Fink

Expert on OAK

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 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

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 March 27, 2026.
See what other customers who have flown with Southwest,United Airlines, andAllegiant Air 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
4,331 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,331 reviews
Southwest
8.0
Very good
4,331 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,492 reviews
Southwest
8.0
Very good
4,331 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Allegiant Air
7.3
Good
709 reviews
Southwest
8.0
Very good
4,331 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.7
Fair
3,014 reviews
Southwest
8.0
Very good
4,331 reviews

Food

7.0

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 5 flights from Oakland (OAK) to Denver Intl (DEN) per day to choose from. Flights to Denver from Oakland are available from 4 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, 27 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 4h 45m. Airlines will cover a distance of 954 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 United Airlines, with the lowest prices starting at $88 and $173, respectively. You may be able to fly from Oakland, California to Denver for 74% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Oakland, California to Denver one-way?

    One-way options have recently been found by users for as low as $74 on Frontier. Other airlines that offer cheap prices include Southwest from $78 and Alaska Airlines from $108 one-way.

  • 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 $354. The most popular route, (Oakland - Denver Intl), can usually be booked for $197.

  • 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, January is the cheapest month in which you can book a flight from Oakland, California to Denver (average of $58). Flying from Oakland, California to Denver in July is currently the most expensive (average of $107). 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
Thornton
Black Hawk
Lakewood
Westminster
Broomfield
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Glendale
Manitou Springs
Frisco
Englewood
Fort Morgan
Brighton

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Oakland to Denver

Discover the top 4 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 March 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$88Average$156FlexibilityNo cancel feeOn-time88%
FrontierCheapest$88Average$217FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$173Average$317FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$180Average$379FlexibilityNo cancel feeOn-time63%

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