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Sonoma

Cheap flights from Denver (DEN) to Sonoma, CA

DEN — SFO
Nov 5 — Nov 121
Thu 11/5
Thu 11/12
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Sonoma are usually found in January or February, booked 75 days in advance, depart on a Friday or Thursday and return on a Wednesday

Find flight deals from Denver to Sonoma

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

July

Cheapest in

January

Average price

$283
Provider with most accurate pricing for Denver Intl-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-San Francisco flights.
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Highest demand for flights based on searches. 15% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Cheapflights Insights

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

What is the cheapest time of day to fly from DEN to SN9?

Unlike in the morning, when flights are generally more expensive, you can save up to 8% on flights from Denver to Sonoma by exploring options for tickets in the evening.

What is the cheapest day to fly from Denver to Sonoma?

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

Reviews of airlines servicing Sonoma

Get a feel of what it's like to fly with Alaska Airlines,Southwest, andUnited Airlines from Denver to Sonoma by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
13,021 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

7.9

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Alaska Airlines
7.9
Good
13,021 reviews
Alaska Airlines
7.9
Good
13,021 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

7.9

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Southwest
7.9
Good
4,214 reviews
Alaska Airlines
7.9
Good
13,021 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

7.9

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
United Airlines
7.4
Good
10,288 reviews
Alaska Airlines
7.9
Good
13,021 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

7.9

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Frontier
5.5
Fair
2,550 reviews
Alaska Airlines
7.9
Good
13,021 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

7.9

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Related info for your journey

  • What airport do you fly from for flights from Denver to Sonoma?

    Denver Intl (DEN), located 18.5 mi from the city center, is the airport you fly out of when you book flights from Denver to Sonoma. 6 airlines have flights from Denver Intl to Sonoma on a regular basis. Booking flights from Denver Intl to Sonoma should not be difficult; the airport handles an average of 48 outbound flights to Sonoma per day.

  • How popular is this Denver to Sonoma flight route?

    Within the past month, 43 users have taken a look at flights from Denver Intl to Sonoma.

  • What are the cheapest airlines to fly from Denver to Sonoma one-way?

    $49 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on JetBlue and Southwest, with prices starting from $102 and $108, respectively.

  • What are the most reliable airlines from Denver to Sonoma?

    No one likes to see their flight delayed. When booking a flight from Denver to Sonoma consider choosing Air China (71%), Air Canada (69%) or Emirates (66%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Denver to Sonoma?

    Looking at all options, your cheapest flight can be booked for $91. While the most popular route (Denver Intl - San Francisco) can be booked for $158 on average, our data indicates $1,074 when flying from Denver to Sonoma.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver to Sonoma 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

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Top 6 airlines flying from Denver to Sonoma

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$81Average$252FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$196Average$426FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$212Average$339FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$224Average$408FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$266Average$385FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$306Average$414FlexibilityNo cancel feeOn-time71%

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