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F9

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1 adult
1 adult, Economy, 0 bags

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Good to know

Low season

High season

Cheapest flight

January
July
£18
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly (3% more expensive on average)
Flight from Los Angeles to San Francisco

FAQs about flying with Frontier

  • What is Frontier's carry-on size allowance?

    On board Frontier flights, cabin baggage should not exceed 23x15x9in. If your hand luggage is bigger, the Frontier assistance team will most likely ask you to pay extra for checked luggage.

  • Where does Frontier fly to?

    Frontier offers direct flights to 87 cities in 10 different countries. Orlando, Philadelphia, and Denver are the most popular cities covered by Frontier.

  • What is Frontier’s primary hub?

    Frontier concentrates most of its flight operations in Denver.

  • How does KAYAK find such low prices on Frontier flights?

    KAYAK is a travel search engine, meaning that we continuously look across the web to find the best deals for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from all airlines, including Frontier.

  • When are Frontier plane tickets cheapest?

    Flight prices with Frontier will depend on the season and route you are flying. Our data shows that overall, the cheapest month to fly with Frontier is January, while the most expensive is July.

  • What’s the cheapest route that Frontier flies?

    In the last 5 days, the cheapest route flown by Frontier found on KAYAK was from Las Vegas to Salt Lake City, with a price of £34 for a round-trip.

  • What are the most popular airports for Frontier flights to depart from?

    With 54 Frontier flights departing each week, Denver Intl airport is the most popular airport for Frontier flights to depart from. The most popular destination from this airport is Los Angeles. The next most popular departure airport is Orlando airport, with 45 Frontier flights departing from there each week.

  • Is Frontier part of an airline alliance?

    No, Frontier is not part of an airline alliance.

  • How many destinations does Frontier fly to?

    In total, Frontier flies to 90 destinations.

Top tips for flying with Frontier

  • If you’re looking for the cheapest Frontier tickets, then try to fly from Los Angeles, where flights have been cheapest lately. The cheapest route from here available recently is to San Francisco, and costs £18.
  • The cheapest month for flights with Frontier is January, while the most expensive is generally July.

Frontier customer reviews

5.6
Fair2,904 verified ratings
4.3Entertainment
6.5Crew
4.5Food
5.4Comfort
5.9Boarding
Traveller rating:
Sort by:
L
6.0 Okay
AUS
-
DEN
There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.
M
10.0 Wonderful
IAD
-
ATL
All went as expected
I
10.0 Wonderful
BOS
-
RDU
Excellent service.
D
10.0 Wonderful
LAS
-
DEN
Everything just worked
J
8.0 Very Good
SDQ
-
PHL
Great
D
10.0 Wonderful
MCO
-
SJU
No internet and no complimentary drinks
V
6.0 Okay
PHX
-
LAS
The staff at the check in counter was so rude. Made you feel Incompetent
D
2.0 Poor
PHX
-
DEN
Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.
H
2.0 Poor
RDU
-
ORD
Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy
S
2.0 Poor
PHX
-
ORD
The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Frontier flight status

YYYY-MM-DD

Frontier route map – Which destinations does Frontier fly to?

Find out which destinations you can fly to direct with Frontier by entering your departure airport. If you want to know whether Frontier flies a certain route, enter both the departure and destination airport before hitting search.
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All Frontier flight routes

Flight no.Departure airportArrival AirportDurationMonTueWedThuFriSatSun
2440Denver (DEN)Raleigh (RDU)3h 28m•••••
1448San Francisco (SFO)Atlanta (ATL)5h 0m•••••
2871San Juan (SJU)Atlanta (ATL)4h 20m•••••
2745Tampa (TPA)Denver (DEN)4h 17m•••••
2912Atlanta (ATL)Tampa (TPA)1h 37m••••
2996Denver (DEN)Houston (IAH)2h 38m••••
4076Houston (IAH)Atlanta (ATL)2h 18m••••
1261Denver (DEN)Ontario (ONT)2h 20m•••
2265San Juan (SJU)Baltimore (BWI)4h 14m•••
1838Atlanta (ATL)Cleveland (CLE)1h 53m••
2779Atlanta (ATL)Chicago (MDW)2h 4m••
More flight routes

Frontier contact information

Overview of Frontier

Focusing predominantly on domestic travel within the United States, Frontier flies to smaller regional locations as well as large cities. Controlling operations from a hub in Denver, the airline reaches more than 105 locations across the United States. Services are also available to international vacation destinations in Mexico, Jamaica, Puerto Rico, Canada, and the Dominican Republic.

Frontier operates as an ultra-low-cost carrier with competitive prices and direct single-leg trips. Fares are kept low by sacrificing luxuries, such as in-flight entertainment devices, while meals and drinks can be purchased as extras. It is a subsidiary of IndiGo Partners, which also controls JetSMART, Volaris, and Wizz Air. A codeshare agreement is held with carrier Volaris, expanding the possible connections between Mexico and the United States.

It is possible to sit in either Economy or Stretch (their version of Premium Economy). The chairs are not designed to recline, meaning the person in front of you won’t encroach on your space. Seats in the Stretch section have roughly an extra 5 in of legroom and a large pull-out tray that is ideal for working on a laptop.

Exclusively Airbus aircraft are chosen for the fleet, with Frontier preferring narrow-body jets like the A320 family. One of the most commonly flown models is the A320neo, which has tremendous fuel efficiency and can carry approximately 186 passengers. The planes have distinctive animals painted on the tails and are all unique images. Among the animals featured are rabbits, dolphins, bears, sea otters, and penguins. The names of the characters appear underneath the cockpit windows.

Everything you need to know about Frontier flights

Frontier information

IATA codeF9
Routes632
Top routePhiladelphia to Orlando Airport
Airports served90
Top airportDenver Intl
Flight status, cancellation, and delay data provided by Flightstats.com. Flightstats data may not always be accurate or error free. Always confirm the information provided here directly with your airline.