MCOOrlando to 2h 34mNonstopPHLPhiladelphia
Round trip$207*
Frontier Airlines Flights
Typical fares, nonstop routes and key cities for Frontier Airlines (F9), with a travel expert on the phone to price your trip.
- Fare experts on call
- Total prices, taxes included
- Independent US travel agency
Past dates are unavailable
Frontier Airlines at a glance
A Denver-based low-fare airline flying the largest Airbus A320neo-family fleet in the US, about 640 times a day.
- 165Airbus aircraft
- ~640daily flights, Q2 2026
- 9.7Mpassengers, Q2 2026
- 897miles, average flight
- Denverheadquarters
- A320neolargest US fleet of this family
Top 20 Frontier routes and typical fares
Frontier rarely flies a route more often than the big airlines, but it is very often the cheapest. On 15 of the 20 routes below, Frontier had one of the two lowest round-trip fares in recent searches.
Typical round-trip fare, all airlines, past 12 months*
DENDenver to 2h 02mNonstopLASLas Vegas
Round trip$217*
MCOOrlando to 2h 55mNonstopSJUSan Juan
Round trip$285*
ATLAtlanta to 1h 35mNonstopMCOOrlando
Round trip$152*
DENDenver to 2h 37mNonstopLAXLos Angeles
Round trip$225*
CLECleveland to 2h 36mNonstopMCOOrlando
Round trip$239*
BWIBaltimore to 2h 04mNonstopATLAtlanta
Round trip$189*
ORDChicago to 2h 49mNonstopDFWDallas–Fort Worth
Round trip$265*
DFWDallas–Fort Worth to 3h 27mNonstopLAXLos Angeles
Round trip$284*
PHLPhiladelphia to 2h 57mNonstopFLLFort Lauderdale
Round trip$214*
ATLAtlanta to 2h 43mNonstopCUNCancun
Round trip$462*
PHLPhiladelphia to 4h 13mNonstopCUNCancun
Round trip$498*
DFWDallas–Fort Worth to 2h 48mNonstopCUNCancun
Round trip$445*
PHLPhiladelphia to 4h 09mNonstopPUJPunta Cana
Round trip$591*
STLSt. Louis to 3h 13mNonstopCUNCancun
Round trip$548*
ORDChicago to 4h 01mNonstopCUNCancun
Round trip$490*
MIAMiami to 2h 54mNonstopGUAGuatemala City
Round trip$398*
MCOOrlando to 3h 18mNonstopSJOSan Jose, CR
Round trip$369*
MCOOrlando to 2h 37mNonstopSDQSanto Domingo
Round trip$445*
IAHHouston to 2h 23mNonstopCUNCancun
Round trip$394*
*Average round-trip economy fare on the route across all airlines over the past 12 months, including all taxes and fees. Flight times reflect the past three months. These are not live quotes; your travel expert will price your exact dates.
Where Frontier flies most
Frontier concentrates its flying in a handful of large leisure and business cities. These are the airports behind the routes on this page.
- DEN
Denver
Frontier’s headquarters city, with 33 nonstops a week to Las Vegas and 21 each to Los Angeles and Houston.
- MCO
Orlando
A big Frontier base: 34 nonstops a week to Philadelphia, 33 to San Juan and 28 to Atlanta.
- ATL
Atlanta
Frontier challenges Delta here with low fares to Orlando, Baltimore and Cancun.
- PHL
Philadelphia
A low-fare alternative to American’s hub, with nonstops to Orlando and Cancun.
- CLE
Cleveland
Frontier flies 21 of the 43 weekly nonstops from Cleveland to Orlando, more than anyone else.
- LAS
Las Vegas
A major leisure market, linked to Denver by 33 Frontier nonstops a week.
Why book Frontier Airlines with JustFlightsFares
Frontier’s base fares are low, and the total depends on what you add. Here is what our travel experts check before giving you a price.
We give you the total, not just the base fare
Frontier sells many extras separately. We price the trip with what you actually need, so you can compare it fairly with Southwest, Delta or United.
We check whether Frontier is really cheapest
Frontier had the lowest fare on Atlanta to Orlando at about $66 round trip. But on some routes another airline matched it, so we confirm every time.
We plan around fewer flights
Frontier often flies a route once or twice a day, so a delay can cost more. We look at timing and backup options before you book.
We compare a full-service fare too
Sometimes a bigger airline is only a little more once extras are added. We show both so you choose with the full picture.
When Frontier Airlines fares are lowest
Seventeen of Frontier’s 20 routes here are cheapest in January or February. Baltimore–Atlanta is cheapest in August, Atlanta–Orlando in March and Chicago–Dallas/Fort Worth in November.
| Route | Cheapest month | Avg. fare that month | 12-month average | Good-deal price |
|---|---|---|---|---|
| Orlando (MCO) – Philadelphia (PHL) | January | $103 | $207 | Under $137 |
| Denver (DEN) – Las Vegas (LAS) | January | $165 | $217 | Under $143 |
| Orlando (MCO) – San Juan (SJU) | February | $207 | $285 | Under $221 |
| Atlanta (ATL) – Orlando (MCO) | March | $129 | $152 | Under $101 |
| Denver (DEN) – Los Angeles (LAX) | February | $154 | $225 | Under $146 |
| Cleveland (CLE) – Orlando (MCO) | January | $210 | $239 | Under $167 |
| Baltimore (BWI) – Atlanta (ATL) | August | $158 | $189 | Under $117 |
| Chicago (ORD) – Dallas–Fort Worth (DFW) | November | $193 | $265 | Under $180 |
| Dallas–Fort Worth (DFW) – Los Angeles (LAX) | February | $176 | $284 | Under $193 |
| Philadelphia (PHL) – Fort Lauderdale (FLL) | January | $135 | $214 | Under $131 |
| Atlanta (ATL) – Cancun (CUN) | February | $338 | $462 | Under $358 |
| Philadelphia (PHL) – Cancun (CUN) | February | $379 | $498 | Under $370 |
| Dallas–Fort Worth (DFW) – Cancun (CUN) | February | $331 | $445 | Under $337 |
| Philadelphia (PHL) – Punta Cana (PUJ) | February | $499 | $591 | Under $479 |
| St. Louis (STL) – Cancun (CUN) | January | $425 | $548 | Under $431 |
| Chicago (ORD) – Cancun (CUN) | January | $356 | $490 | Under $361 |
| Miami (MIA) – Guatemala City (GUA) | February | $294 | $398 | Under $293 |
| Orlando (MCO) – San Jose, CR (SJO) | February | $284 | $369 | Under $285 |
| Orlando (MCO) – Santo Domingo (SDQ) | February | $327 | $445 | Under $357 |
| Houston (IAH) – Cancun (CUN) | February | $333 | $394 | Under $302 |
Round-trip economy averages, all airlines, including all taxes and fees.
Use January for Philadelphia–Orlando
This route averages $207 round trip but drops to about $103 in January, half price.
Fly Monday to Las Vegas
Denver–Las Vegas averages $159 on a Monday departure against $252 on a Friday.
Don’t wait on Houston–Denver
Last-minute fares on this route run about 54% above average. Booking around 9 weeks ahead works best.
Frontier Airlines flights: common questions
Where is Frontier Airlines based?
Denver. Frontier is headquartered there and flies more of its routes on this page from Denver and Orlando than from anywhere else.
Is Frontier the cheapest airline?
Often, but not always. On 15 of the 20 routes on this page, Frontier had one of the two lowest round-trip fares in recent searches. On Atlanta to Orlando its cheapest fare was about $66 against a $152 route average.
How many planes does Frontier have?
165 Airbus aircraft as of June 30, 2026, all from the A320 family.
Does Frontier fly to Cancun?
Yes. Frontier flies to Cancun from Atlanta (about 5 times a week) and Philadelphia (about 3 times a week).
When are Frontier fares cheapest?
Mostly in January and February, on 17 of the 20 routes here. Baltimore–Atlanta, cheapest in August, is the biggest exception.
Is JustFlightsFares part of Frontier Airlines?
No. JustFlightsFares is an independent travel agency, not owned by or affiliated with Frontier Airlines. Our travel experts book Frontier flights for you and compare them with other airlines on your route.
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JetBlueAbout this page. JustFlightsFares is an independent travel agency and is not affiliated with, endorsed by or sponsored by Frontier Airlines. Frontier Airlines, the F9 code and its logo are trademarks of their owner and appear here only to identify the airline. Fares change constantly, and we confirm the total price, including all taxes and fees, before you pay.
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