F9

Find cheap Frontier flights

1 adult
1 adult, Economy

Search hundreds of travel sites at once for deals on Frontier flights

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Good to know

Low season

High season

Cheapest flight

April
December
$237
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (21% more expensive on average)
Flight from San Francisco to Atlanta

FAQs about flying with Frontier

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

    On board Frontier flights, cabin baggage should not exceed 60x40x25cm. 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 101 cities in 13 different countries. Denver, Phoenix, and Orlando 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 April, while the most expensive is December.

  • What’s the cheapest route that Frontier flies?

    In the last 72 hours, the cheapest route flown by Frontier found on KAYAK was from Las Vegas to Tucson, with a price of $66 for a round-trip.

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

  • 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 104 destinations.

Top tips for flying with Frontier

  • If you’re looking for the cheapest Frontier tickets, then try to fly from San Francisco, where flights have been cheapest lately. The cheapest route from here available recently is to Atlanta, and costs $237.
  • The cheapest month for flights with Frontier is April, while the most expensive is generally December.

Frontier customer reviews

5.8
Fair3,137 verified ratings
5.5Comfort
4.4Entertainment
6.1Boarding
4.6Food
6.7Crew
Pros +
Cons -
  • Aside from this probably one time deal. (in 1257 reviews)
  • On the ticket it said checked bag. (in 1044 reviews)
Show reviews that mention
Traveller rating:
Sort by:
R
6.0 Okay
BWI-MDW
The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company
V
6.0 Okay
ATL-ORD
Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.
R
6.0 Okay
PHX-SEA
Too cattle like.
V
10.0 Wonderful
BUR-DEN
Early takeoff and arrival. Nice crew and gate agents.
V
2.0 Poor
ATL-LGA
Customer service can be better at boarding poor communication
B
8.0 Very Good
TPA-CLT
Everyone seemed to be in zone 1 for boarding. Maybe break it up a little. Otherwise, smooth flight.
A
2.0 Poor
DEN-MCO
Frontier is the Walmart of airlines. Frontier has removed adjustability and comfort from their seats to make the flight lighter and save gas. This makes it impossible to sleep on their flights. Their customer service is abysmal. Once, I bought a drink on the plane, and they swiped my credit card on the plane to pay for it. Then I got three weeks of daily notices from my bank telling me they tried to charge the wrong card number over and over again. I tried to call them, but they removed the ability to actually talk to someone that can resolve such a problem from their company to cut corners. The only way to talk to someone in person is to go to the check-in counter at the airport (40 minutes drive from my house). Eventually their system gave up on trying to charge the card, after 21 days of repeated tries. They don't pad their prices even a little to handle customer service issues like missed flights. They also have a blanket policy preventing helping you reschedule a missed flight if their system says you "cancelled" your own flight online. This is a major problem because their website is broken on mobile devices, the only web browser you have at the airport when their gate staff tell you that you have to reschedule your own missed flight online because they can't help you. I tried to reschedule my flight on my android device and instead, their website crashed and "cancelled" my missed flight. When I got to the counter, the agent argued with me for 5 minutes insisting that I intentionally cancelled my own flight (implying I had to buy another flight). She missed the point: the problem was that I could not buy another flight because their website is broken. I left to avoid more conflict with the "customer service" agent. I tried to redress my issue with their only other "customer service" chanel available: the contact form on their website. The response I got was more of the same: you cancelled your own flight, according to our website / computer records, therefore we won't help you. I was trying to explain the problem with their broken website that cost me hundreds of dollars by crashing / malfunctioning and resulting in a cancelled flight, but they only had deaf ears for this problem. Worst customer service I have ever experienced. I will never buy another Frontier flight again, because it is a risky, painful move that I will likely regret often.
K
10.0 Wonderful
PHX-SNA
I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.
C
2.0 Poor
SNA-PHX
This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.
V
4.0 Mediocre
SEA-DEN
Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

Frontier flight status

Wed 10/15

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.
Wed 10/15

All Frontier flight routes

Flight no.Departure airportArrival AirportDurationMonTueWedThuFriSatSun
3293Atlanta (ATL)Denver (DEN)3h 33m
87Cancún (CUN)St. Louis (STL)3h 17m
3294Denver (DEN)Atlanta (ATL)3h 3m
2890Denver (DEN)Austin (AUS)2h 14m
777Denver (DEN)Las Vegas (LAS)2h 2m
4345Denver (DEN)Los Angeles (LAX)2h 30m
3302Denver (DEN)St. Louis (STL)2h 7m
3237New York (JFK)Las Vegas (LAS)5h 35m
2503New York (JFK)Los Angeles (LAX)6h 3m
4871New York (JFK)Orlando (MCO)2h 58m
3545New York (JFK)San Juan (SJU)3h 54m
1994Las Vegas (LAS)Denver (DEN)2h 0m
3238Las Vegas (LAS)New York (JFK)5h 3m
1183Las Vegas (LAS)Los Angeles (LAX)1h 22m
2504Los Angeles (LAX)New York (JFK)5h 38m
3292Los Angeles (LAX)Las Vegas (LAS)1h 25m
3311Orlando (MCO)Denver (DEN)4h 17m
4872Orlando (MCO)New York (JFK)2h 41m
4726Orlando (MCO)San Juan (SJU)3h 0m
1003Philadelphia (PHL)Atlanta (ATL)2h 27m
2387Philadelphia (PHL)Charlotte (CLT)1h 53m
3546San Juan (SJU)New York (JFK)4h 3m
1823San Juan (SJU)Orlando (MCO)3h 2m
86St. Louis (STL)Cancún (CUN)3h 13m
4567St. Louis (STL)Denver (DEN)2h 28m
4602Atlanta (ATL)Newark (EWR)2h 20m
1872Atlanta (ATL)New York (JFK)2h 19m
689Washington, D.C. (DCA)Denver (DEN)4h 8m
688Denver (DEN)Washington, D.C. (DCA)3h 25m
1734Denver (DEN)Orlando (MCO)3h 28m
4616Denver (DEN)Minneapolis (MSP)2h 0m
2711Denver (DEN)San Diego (SAN)2h 21m
2882Dallas (DFW)Chicago (MDW)2h 19m
3229Houston (IAH)Denver (DEN)2h 36m
1755Houston (IAH)Los Angeles (LAX)3h 38m
4978Houston (IAH)Orlando (MCO)2h 28m
1871New York (JFK)Atlanta (ATL)2h 40m
1650Las Vegas (LAS)Dallas (DFW)2h 53m
1876Las Vegas (LAS)Orlando (MCO)4h 29m
1756Los Angeles (LAX)Houston (IAH)3h 27m
4146Los Angeles (LAX)Orlando (MCO)4h 54m
4593Los Angeles (LAX)San Francisco (SFO)1h 32m
1417Orlando (MCO)Houston (IAH)2h 47m
1875Orlando (MCO)Las Vegas (LAS)5h 12m
4145Orlando (MCO)Los Angeles (LAX)5h 28m
2999Chicago (MDW)Dallas (DFW)2h 41m
4462Philadelphia (PHL)San Juan (SJU)3h 46m
3308San Francisco (SFO)Los Angeles (LAX)1h 32m
1015San Juan (SJU)Philadelphia (PHL)3h 58m
1815Austin (AUS)Denver (DEN)2h 21m
1783Nashville (BNA)Denver (DEN)3h 0m
1953Aguadilla (BQN)Orlando (MCO)2h 59m
1499Denver (DEN)Ontario (ONT)2h 21m
1175Denver (DEN)Seattle (SEA)3h 9m
3424Dallas (DFW)New York (LGA)3h 29m
1157Newark (EWR)Atlanta (ATL)2h 40m
1511New York (JFK)Dallas (DFW)4h 1m
1809New York (JFK)Miami (MIA)3h 12m
3423New York (LGA)Dallas (DFW)3h 57m
1230San Francisco (SFO)Denver (DEN)2h 44m
4683Austin (AUS)Las Vegas (LAS)3h 2m
4574Cleveland (CLE)Charlotte (CLT)1h 44m
1821Cleveland (CLE)Las Vegas (LAS)4h 41m
3092Cleveland (CLE)New York (LGA)1h 34m
2668Cleveland (CLE)Orlando (MCO)2h 26m
3134Charlotte (CLT)New York (LGA)1h 54m
1384Charlotte (CLT)Philadelphia (PHL)1h 47m
45Cancún (CUN)Chicago (ORD)3h 55m
3725Cincinnati (CVG)Denver (DEN)3h 5m
1784Denver (DEN)Nashville (BNA)2h 38m
2632Denver (DEN)Dallas (DFW)2h 5m
3162Denver (DEN)New York (LGA)3h 52m
2105Denver (DEN)Phoenix (PHX)2h 3m
4721Denver (DEN)Salt Lake City (SLC)1h 35m
1114Denver (DEN)Tampa (TPA)3h 23m
4069Dallas (DFW)Denver (DEN)2h 18m
1512Dallas (DFW)New York (JFK)3h 57m
1051Dallas (DFW)Las Vegas (LAS)3h 20m
1413Newark (EWR)Chicago (MDW)2h 25m
2400Houston (IAH)Atlanta (ATL)2h 19m
2428Las Vegas (LAS)Atlanta (ATL)4h 5m
3646Las Vegas (LAS)Austin (AUS)2h 51m
3232Las Vegas (LAS)Cleveland (CLE)4h 18m
2231Las Vegas (LAS)Ontario (ONT)1h 9m
3287New York (LGA)Atlanta (ATL)2h 44m
3091New York (LGA)Cleveland (CLE)1h 50m
3133New York (LGA)Charlotte (CLT)2h 6m
3161New York (LGA)Denver (DEN)4h 13m
1954Orlando (MCO)Aguadilla (BQN)2h 48m
1414Chicago (MDW)Newark (EWR)2h 4m
1810Miami (MIA)New York (JFK)3h 0m
1149Minneapolis (MSP)Denver (DEN)2h 13m
3223Minneapolis (MSP)Dallas (DFW)2h 43m
2232Ontario (ONT)Las Vegas (LAS)1h 12m
44Chicago (ORD)Cancún (CUN)3h 45m
3983Phoenix (PHX)Las Vegas (LAS)1h 19m
1571Phoenix (PHX)San Diego (SAN)1h 20m
2818San Diego (SAN)Denver (DEN)2h 37m
1470San Diego (SAN)Las Vegas (LAS)1h 31m
4578San Diego (SAN)Phoenix (PHX)1h 30m
4158San Francisco (SFO)Las Vegas (LAS)1h 45m
3982Salt Lake City (SLC)Denver (DEN)1h 40m
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
Routes902
Top routePhoenix Sky Harbor Intl Airport to Denver
Airports served104
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.

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.