Cheap flights from San Diego (SAN) to Boulder, CO from $35

Currently, December is the cheapest month in which you can book a flight from San Diego to Boulder (average of $192). Flying from San Diego to Boulder in June is currently the most expensive (average of $280). 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 airport do you fly from for flights from San Diego to Boulder?

  San Diego (SAN), located 2.6 mi from the city center, is the airport you fly out of when you book flights from San Diego to Boulder. 6 airlines have flights from San Diego to Boulder on a regular basis. Booking flights from San Diego to Boulder should not be difficult; the airport handles an average of 25 outbound flights to Boulder per day.

• Can I find flights from San Diego to Boulder for under $100 on Cheapflights?

  Yes, there are multiple flights from San Diego to Boulder for under $100. The cheapest flight booked recently is on Frontier for just $61, but on average you can expect to pay $76.

• Are there nonstop flights from San Diego to Boulder for under $100 on Cheapflights?

  Cheapflights has at least 20 direct flights from San Diego to Boulder under $100. A good price for a nonstop flight from San Diego to Boulder is less than $74.

• Are there last-minute flights available from San Diego to Boulder for under $100?

  There are currently 20+ open flights from San Diego to Boulder within the next 7 days for less than $100.

• What days are nonstop flights available from San Diego to Boulder?

  Nonstop flights can be found on the following days: Sunday, Monday, Wednesday.

• How popular is this San Diego to Boulder flight route?

  Flights from San Diego to Boulder have been viewed 261 times in the past calendar month.

• How many flights depart from San Diego to Boulder on average per day?

  On average 6 flights depart from San Diego to Boulder per day.
  Morning (6am - Noon) - 67% of flight departures
  Afternoon (Noon - 6pm) - 33% of flight departures

• How long is the flight from San Diego to Boulder?

  There are many flights that can get you from San Diego to Boulder in 2h 30m. Fly via Frontier to get the fastest option. There are 856 mi between San Diego and Boulder. Most flights are nonstop.

• What are the most popular airlines that fly from San Diego to Boulder?

  Before booking your flight from San Diego to Boulder check out the most popular airlines for this route: American Airlines, Delta or Frontier.

• What are the most reliable airlines from San Diego to Boulder?

  No one likes to see their flight delayed. When booking a flight from San Diego to Boulder consider choosing Air Canada (93%), Lufthansa (93%) or Frontier (81%) as they are the most reliable in getting you off to your destination on time.

• What are the cheapest flights from San Diego to Boulder?

  On average you can expect to pay $810 for a flight from San Diego to Boulder. The cheapest flight overall is $45 while the most popular route, (San Diego - Denver Intl) is currently priced at $115.

• What does SAN to DEN mean?

  San Diego Airport is SAN and Denver Intl Airport is DEN. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Colorado Springs Airport (COS), Vail Eagle County Airport (EGE), Cheyenne Airport (CYS), Denver Arapahoe Co Airport (APA), Loveland Northern Colorado Airport (FNL).

• Can I find deals for flights from San Diego to Boulder that include extra baggage allowance?

  The amount of baggage you can bring on your San Diego to Boulder flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

• Can I find deals on flights from San Diego to Boulder with specific airlines?

  Yes, Cheapflights allows you to browse and filter San Diego to Boulder flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

• Can I find deals for flights from San Diego to Boulder that include hotel bookings?

  Yes. In addition to deals on San Diego to Boulder flights, Cheapflights offers vacation packages that include both flights and hotel.

• How can I find direct flights from San Diego to Boulder?

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

• Can I find deals for business class flights from San Diego to Boulder?

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

• Can I find deals for flights from San Diego to Boulder that allow pets onboard?

  Many airlines flying from San Diego to Boulder offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

• Can I find deals on last-minute flights from San Diego to Boulder?

  Yes, you can often find last-minute deals on San Diego to Boulder flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

• How recently were the San Diego to Boulder flight deals updated?

  The San Diego to Boulder flight deals you see on this page were last updated on 5/8.