Find cheap flights on Frontier

Find cheap flights on Frontier

Round-trip
Economy
Boston (BOS)
To?
Mon. 20/7
Return
Any month
Compare vs. KAYAK |

Frontier information

IATA Code F9
Routes 659
Top route Las Vegas McCarran to Denver Intl
Airports served 106
Top airport Denver Intl

Frontier traveller reviews

Pros

Cons

Traveler reviews

Overall rating

5.8 Okay
Based on 39,131 reviews

Boarding
6.5

Comfort
5.5

Crew
6.9

Entertainment
4.6

Food
4.8

Recent reviews

Traveler rating

2969
3770
5384
5165
4320
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Flight status

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Frontier

Frontier route map

Popular flight routes

Flight
Origin
Destination
Sun. Mon. Tue. Wed. Thu. Fri. Sat.
S M T W T F S
1510
Atlanta
ATL
New York
LGA
1510
Denver
DEN
Atlanta
ATL
172
Denver
DEN
Philadelphia
PHL
1511
Atlanta
ATL
Denver
DEN
678
Denver
DEN
Orlando
MCO
551
Denver
DEN
San Diego
SAN
290
Denver
DEN
Tampa
TPA
1102
Las Vegas
LAS
Orlando
MCO
1274
Los Angeles
LAX
Orlando
MCO
1511
New York
LGA
Atlanta
ATL
1103
Orlando
MCO
Las Vegas
LAS
1275
Orlando
MCO
Los Angeles
LAX
106
Orlando
MCO
San Juan
SJU
550
San Diego
SAN
Denver
DEN
109
San Juan
SJU
Philadelphia
PHL
105
San Juan
SJU
Orlando
MCO
537
Washington
DCA
Denver
DEN
 
536
Denver
DEN
Washington
DCA
 
750
Phoenix
PHX
Denver
DEN
 
1162
Orlando
MCO
Philadelphia
PHL
 
242
Denver
DEN
Houston
IAH
263
Dallas
DFW
Denver
DEN
243
Houston
IAH
Denver
DEN
412
Denver
DEN
Chicago
ORD
 
264
Denver
DEN
Dallas
DFW
614
Denver
DEN
Miami
MIA
570
Salt Lake City
SLC
Denver
DEN
2158
Las Vegas
LAS
Miami
MIA
683
Orlando
MCO
Denver
DEN
   
2383
Philadelphia
PHL
Atlanta
ATL
   
573
Denver
DEN
Salt Lake City
SLC
2159
Miami
MIA
Las Vegas
LAS
 
486
Denver
DEN
Fort Myers
RSW
 
487
Fort Myers
RSW
Denver
DEN
 
615
Miami
MIA
Denver
DEN
   
1483
New York
EWR
Chicago
ORD
     
122
San Juan
SJU
New York
EWR
     
1259
New York
EWR
Orlando
MCO
   
2382
Atlanta
ATL
Philadelphia
PHL
     
100
Atlanta
ATL
San Juan
SJU
     
123
New York
EWR
San Juan
SJU
     
1418
Las Vegas
LAS
Chicago
ORD
     
1482
Chicago
ORD
New York
EWR
     
1419
Chicago
ORD
Las Vegas
LAS
     
101
San Juan
SJU
Atlanta
ATL
     
145
Denver
DEN
Seattle
SEA
 
2322
Jacksonville
JAX
Philadelphia
PHL
     
2079
Las Vegas
LAS
San Francisco
SFO
     
402
Los Angeles
LAX
Denver
DEN
1258
Orlando
MCO
New York
EWR
   
413
Chicago
ORD
Denver
DEN
     
2323
Philadelphia
PHL
Jacksonville
JAX
     
1165
Philadelphia
PHL
Orlando
MCO
     
142
Seattle
SEA
Denver
DEN
 
2062
San Francisco
SFO
Las Vegas
LAS
     
1239
Boston
BOS
Orlando
MCO
     
171
Philadelphia
PHL
Denver
DEN
   
291
Tampa
TPA
Denver
DEN
770
Las Vegas
LAS
Denver
DEN
71
Cancún
CUN
Denver
DEN
       
70
Denver
DEN
Cancún
CUN
       
405
Denver
DEN
Los Angeles
LAX
 
755
Denver
DEN
Phoenix
PHX
       
128
Chicago
ORD
San Juan
SJU
       
1651
Philadelphia
PHL
Raleigh
RDU
       
1650
Raleigh
RDU
Philadelphia
PHL
       
102
Raleigh
RDU
San Juan
SJU
       
129
San Juan
SJU
Chicago
ORD
       
103
San Juan
SJU
Raleigh
RDU
       
649
Cincinnati
CVG
Denver
DEN
     
648
Denver
DEN
Cincinnati
CVG
     
777
Denver
DEN
Las Vegas
LAS
     
665
Denver
DEN
San Francisco
SFO
     
2014
Las Vegas
LAS
Cleveland
CLE
       
108
Philadelphia
PHL
San Juan
SJU
1062
Orlando
MCO
Cincinnati
CVG
   
1094
Orlando
MCO
Islip
ISP
     
1043
Cleveland
CLE
Orlando
MCO
     
458
Denver
DEN
Minneapolis
MSP
     
2150
Las Vegas
LAS
Phoenix
PHX
       
459
Minneapolis
MSP
Denver
DEN
     
2151
Phoenix
PHX
Las Vegas
LAS
       
2415
Cleveland
CLE
Phoenix
PHX
         
522
Denver
DEN
Cleveland
CLE
         
2823
Colorado Springs
COS
Phoenix
PHX
         
1099
Islip
ISP
Orlando
MCO
         
2519
Islip
ISP
Tampa
TPA
         
2018
Las Vegas
LAS
Colorado Springs
COS
         
2163
Las Vegas
LAS
Los Angeles
LAX
         
1158
Orlando
MCO
Norfolk
ORF
         
2822
Phoenix
PHX
Colorado Springs
COS
         
2518
Tampa
TPA
Islip
ISP
         
1063
Cincinnati
CVG
Orlando
MCO
   
1743
Cincinnati
CVG
Fort Myers
RSW
   
1238
Orlando
MCO
Boston
BOS
       
1515
Miami
MIA
Atlanta
ATL
         
1742
Fort Myers
RSW
Cincinnati
CVG
   
822
Fort Myers
RSW
Trenton
TTN
         
801
Trenton
TTN
Orlando
MCO
         
823
Trenton
TTN
Fort Myers
RSW
         
1154
Orlando
MCO
Chicago
ORD
   
1155
Chicago
ORD
Orlando
MCO
   
1011
Orlando
MCO
Atlanta
ATL
       
1243
Baltimore
BWI
Orlando
MCO
       
269
Denver
DEN
Santa Ana
SNA
     
1242
Orlando
MCO
Baltimore
BWI
       
268
Santa Ana
SNA
Denver
DEN
     
2423
Cleveland
CLE
Fort Myers
RSW
       
2555
New York
EWR
Tampa
TPA
     
2554
Tampa
TPA
New York
EWR
     
2183
New York
EWR
Las Vegas
LAS
         
2182
Las Vegas
LAS
New York
EWR
         
664
San Francisco
SFO
Denver
DEN
     
287
Albany
ALB
Denver
DEN
           
2001
Atlanta
ATL
Las Vegas
LAS
           
1010
Atlanta
ATL
Orlando
MCO
       
1514
Atlanta
ATL
Miami
MIA
           
2551
Atlanta
ATL
Tampa
TPA
           
1020
Austin
AUS
Orlando
MCO
           
239
Hartford
BDL
Denver
DEN
           
591
Bismarck
BIS
Denver
DEN
           
2310
Charleston
CHS
Philadelphia
PHL
           
255
Columbus
CMH
Denver
DEN
           
2019
Colorado Springs
COS
Las Vegas
LAS
           
1759
Cincinnati
CVG
Tampa
TPA
         
286
Denver
DEN
Albany
ALB
           
238
Denver
DEN
Hartford
BDL
           
590
Denver
DEN
Bismarck
BIS
           
254
Denver
DEN
Columbus
CMH
           
138
Denver
DEN
Green Bay
GRB
           
730
Denver
DEN
Memphis
MEM
           
466
Denver
DEN
Oklahoma City
OKC
           
558
Denver
DEN
Raleigh
RDU
           
634
Denver
DEN
Tulsa
TUL
           
218
Denver
DEN
Fayetteville
XNA
           
139
Green Bay
GRB
Denver
DEN
           
2000
Las Vegas
LAS
Atlanta
ATL
           
2171
Las Vegas
LAS
Portland
PDX
           
2093
Las Vegas
LAS
Sacramento
SMF
           
1019
Orlando
MCO
Austin
AUS
           
1044
Orlando
MCO
Cleveland
CLE
           
1050
Orlando
MCO
Charlotte
CLT
           
1182
Orlando
MCO
Providence
PVD
           
1214
Orlando
MCO
Syracuse
SYR
           
800
Orlando
MCO
Trenton
TTN
           
731
Memphis
MEM
Denver
DEN
           
2290
Miami
MIA
Philadelphia
PHL
           
2386
Myrtle Beach
MYR
Philadelphia
PHL
           
467
Oklahoma City
OKC
Denver
DEN
           
1159
Norfolk
ORF
Orlando
MCO
           
818
West Palm Beach
PBI
Trenton
TTN
           
790
Portland
PDX
Denver
DEN
           
2170
Portland
PDX
Las Vegas
LAS
           
2311
Philadelphia
PHL
Charleston
CHS
           
2291
Philadelphia
PHL
Miami
MIA
           
2387
Philadelphia
PHL
Myrtle Beach
MYR
           
1183
Providence
PVD
Orlando
MCO
           
2422
Fort Myers
RSW
Cleveland
CLE
           
2090
Sacramento
SMF
Las Vegas
LAS
           
1215
Syracuse
SYR
Orlando
MCO
           
2550
Tampa
TPA
Atlanta
ATL
           
819
Trenton
TTN
West Palm Beach
PBI
           
219
Fayetteville
XNA
Denver
DEN
           
1760
Tampa
TPA
Cincinnati
CVG
           
966
Fort Myers
RSW
Boston
BOS
         
1500
Atlanta
ATL
Islip
ISP
         
967
Boston
BOS
Fort Myers
RSW
         
1501
Islip
ISP
Atlanta
ATL
         
201
Charlotte
CLT
Denver
DEN
           
198
Denver
DEN
Charlotte
CLT
           
154
Denver
DEN
Des Moines
DSM
           
258
Denver
DEN
New York
EWR
           
442
Denver
DEN
Sioux Falls
FSD
           
498
Denver
DEN
Grand Rapids
GRR
           
430
Denver
DEN
Little Rock
LIT
           
791
Denver
DEN
Portland
PDX
           
638
Denver
DEN
Pensacola
PNS
           
155
Des Moines
DSM
Denver
DEN
           
1071
Detroit
DTW
Orlando
MCO
           
259
New York
EWR
Denver
DEN
           
443
Sioux Falls
FSD
Denver
DEN
           
499
Grand Rapids
GRR
Denver
DEN
           
2086
Las Vegas
LAS
Salt Lake City
SLC
           
2794
Los Angeles
LAX
Phoenix
PHX
         
431
Little Rock
LIT
Denver
DEN
           
1070
Orlando
MCO
Detroit
DTW
           
1462
Chicago
ORD
Philadelphia
PHL
           
1463
Philadelphia
PHL
Chicago
ORD
           
2355
Philadelphia
PHL
Fort Myers
RSW
         
2795
Phoenix
PHX
Los Angeles
LAX
         
2947
Phoenix
PHX
San Diego
SAN
           
2942
Phoenix
PHX
Salt Lake City
SLC
           
639
Pensacola
PNS
Denver
DEN
           
2354
Fort Myers
RSW
Philadelphia
PHL
         
2946
San Diego
SAN
Phoenix
PHX
           
2082
San Jose
SJC
Las Vegas
LAS
         
2087
Salt Lake City
SLC
Las Vegas
LAS
           
2943
Salt Lake City
SLC
Phoenix
PHX
           
1590
Atlanta
ATL
Raleigh
RDU
           
806
Atlanta
ATL
Trenton
TTN
           
191
Austin
AUS
Denver
DEN
           
391
Nashville
BNA
Denver
DEN
           
2306
Nashville
BNA
Philadelphia
PHL
           
2287
Boston
BOS
Philadelphia
PHL
           
451
Buffalo
BUF
Denver
DEN
           
1039
Buffalo
BUF
Orlando
MCO
           
227
Baltimore
BWI
Denver
DEN
           
546
Bozeman
BZN
Denver
DEN
           
2015
Cleveland
CLE
Las Vegas
LAS
           
2435
Cleveland
CLE
Tampa
TPA
           
1053
Charlotte
CLT
Orlando
MCO
           
2314
Charlotte
CLT
Philadelphia
PHL
           
190
Denver
DEN
Austin
AUS
           
390
Denver
DEN
Nashville
BNA
           
450
Denver
DEN
Buffalo
BUF
           
226
Denver
DEN
Baltimore
BWI
           
547
Denver
DEN
Bozeman
BZN
           
622
Denver
DEN
Detroit
DTW
           
186
Denver
DEN
Wichita
ICT
           
606
Denver
DEN
Indianapolis
IND
           
330
Denver
DEN
Kansas City
MCI
           
434
Denver
DEN
Milwaukee
MKE
           
182
Denver
DEN
Omaha
OMA
           
274
Denver
DEN
Pittsburgh
PIT
           
388
Denver
DEN
San Antonio
SAT
           
627
Denver
DEN
Sacramento
SMF
           
1246
Dallas
DFW
Orlando
MCO
           
623
Detroit
DTW
Denver
DEN
           
187
Wichita
ICT
Denver
DEN
           
607
Indianapolis
IND
Denver
DEN
           
2039
Indianapolis
IND
Las Vegas
LAS
           
1091
Indianapolis
IND
Orlando
MCO
           
2863
Islip
ISP
Myrtle Beach
MYR
           
2038
Las Vegas
LAS
Indianapolis
IND
           
2074
Las Vegas
LAS
San Antonio
SAT
           
2083
Las Vegas
LAS
San Jose
SJC
           
2094
Las Vegas
LAS
St. Louis
STL
           
2164
Los Angeles
LAX
Las Vegas
LAS
           
331
Kansas City
MCI
Denver
DEN
           
1038
Orlando
MCO
Buffalo
BUF
           
1247
Orlando
MCO
Dallas
DFW
           
1090
Orlando
MCO
Indianapolis
IND
           
1190
Orlando
MCO
Raleigh
RDU
           
1199
Orlando
MCO
San Antonio
SAT
           
1211
Orlando
MCO
St. Louis
STL
           
118
Miami
MIA
San Juan
SJU
           
435
Milwaukee
MKE
Denver
DEN
           
2862
Myrtle Beach
MYR
Islip
ISP
           
183
Omaha
OMA
Denver
DEN
           
1427
Chicago
ORD
Phoenix
PHX
           
2307
Philadelphia
PHL
Nashville
BNA
           
2286
Philadelphia
PHL
Boston
BOS
           
2315
Philadelphia
PHL
Charlotte
CLT
           
2377
Philadelphia
PHL
Tampa
TPA
           
1426
Phoenix
PHX
Chicago
ORD
           
275
Pittsburgh
PIT
Denver
DEN
           
1591
Raleigh
RDU
Atlanta
ATL
           
1191
Raleigh
RDU
Orlando
MCO
           
387
San Antonio
SAT
Denver
DEN
           
2075
San Antonio
SAT
Las Vegas
LAS
           
1198
San Antonio
SAT
Orlando
MCO
           
119
San Juan
SJU
Miami
MIA
           
626
Sacramento
SMF
Denver
DEN
           
2095
St. Louis
STL
Las Vegas
LAS
           
1210
St. Louis
STL
Orlando
MCO
           
2434
Tampa
TPA
Cleveland
CLE
           
2378
Tampa
TPA
Philadelphia
PHL
           
807
Trenton
TTN
Atlanta
ATL
           
635
Tulsa
TUL
Denver
DEN
           

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.

Frontier Cancellation Policy

As the situation changes with coronavirus (COVID-19), Frontier will continually update its policies accordingly. Please contact Frontier directly for the latest information about cancellation fees. You can find the most up-to-date information on Frontier policies here: Frontier Travel Advisories & Policies
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.
  • Round-trip
  • One-way
  • Multi-city
  • Trip Builder
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First