Frontier's UpFront Plus guarantees an empty middle seat for extra comfort.
Frontier's Zone 1 boarding is available with a carry-on purchase or special fare bundle.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $59 (CheapOair) |
One-way from | $35 (Trip.com) |
Popular in | December |
Cheapest in | September |
Average price | $163 |
Good round-trip deal | $105 or less |
Good one-way deal | $75 or less |
Fly from
Fly to
Route
Depart
Return
Price
ChicagoAtlanta
ORD - ATL
ORDATL
Chicago O'Hare Intl
Sat 2/21
4:42 pm-8:08 pm
Nonstop2h 26m
Atlanta Hartsfield-Jackson
Sun 2/22
9:15 pm-10:39 pm
Nonstop2h 24m
ChicagoAtlanta
ORD - ATL
ORDATL
Chicago O'Hare Intl
Sat 2/7
6:03 am-9:24 am
Nonstop2h 21m
Atlanta Hartsfield-Jackson
Sat 2/14
9:17 am-10:46 am
Nonstop2h 29m
ChicagoAtlanta
ORD - ATL
ORDATL
Chicago O'Hare Intl
Sat 2/7
7:20 am-2:20 pm
1 stop6h 00m
Atlanta Hartsfield-Jackson
Sat 2/14
9:17 am-10:46 am
Nonstop2h 29m
ChicagoAtlanta
ORD - ATL
ORDATL
Chicago O'Hare Intl
Wed 3/11
5:01 am-8:18 am
Nonstop2h 17m
Atlanta Hartsfield-Jackson
Fri 3/20
9:23 am-10:52 am
Nonstop2h 29m
ChicagoAtlanta
ORD - ATL
ORDATL
Chicago O'Hare Intl
Fri 3/13
4:51 pm-8:17 pm
Nonstop2h 26m
Atlanta Hartsfield-Jackson
Wed 3/18
9:23 am-10:52 am
Nonstop2h 29m
ChicagoAtlanta
ORD - ATL
ORDATL
Chicago O'Hare Intl
Fri 2/27
8:16 pm-10:24 am
1 stop13h 08m
Atlanta Hartsfield-Jackson
Mon 3/2
9:15 pm-10:39 pm
Nonstop2h 24m
ChicagoAtlanta
ORD - ATL
ORDATL
Chicago O'Hare Intl
Fri 3/13
4:51 pm-8:17 pm
Nonstop2h 26m
Atlanta Hartsfield-Jackson
Sun 3/15
9:23 am-10:52 am
Nonstop2h 29m
ChicagoAtlanta
ORD - ATL
ORDATL
Chicago O'Hare Intl
Wed 3/11
2:43 pm-9:50 pm
1 stop6h 07m
Atlanta Hartsfield-Jackson
Tue 3/17
9:23 am-10:52 am
Nonstop2h 29m
ChicagoAtlanta
ORD - ATL
ORDATL
Chicago O'Hare Intl
Wed 3/11
2:43 pm-9:50 pm
1 stop6h 07m
Atlanta Hartsfield-Jackson
Wed 3/18
9:23 am-10:52 am
Nonstop2h 29m
ChicagoAtlanta
ORD - ATL
ORDATL
Chicago O'Hare Intl
Wed 3/11
2:43 pm-9:50 pm
1 stop6h 07m
Atlanta Hartsfield-Jackson
Thu 3/19
9:23 am-10:52 am
Nonstop2h 29m
Currently, January is the cheapest month in which you can book a flight from USA to Atlanta (average of $48). Flying from USA to Atlanta in July is currently the most expensive (average of $73). 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.
It’s typically best to fly out from USA to Atlanta in the evening. Doing so could potentially save you 40% on the flight price compared to flying at noon, which is usually more expensive.
Travelers seeking maximum savings on their USA to Atlanta flight should consider departing on Sunday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from US0 to ATL are scheduled on a Monday (47 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (28 on average).
About 15% of weekly flights between United States and Atlanta have experienced delays in the past year, with the average delay time being 139 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Air Antilles have had the lowest number of delays on this route, with just 4% of flights being delayed.
Overall
Food
Comfort
Crew
Boarding
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Food
Comfort
Crew
Boarding
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Food
Comfort
Crew
Boarding
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Food
Comfort
Crew
Boarding
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Food
Comfort
Crew
Boarding
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Food
Comfort
Crew
Boarding
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$31 | Average$137 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$56 | Average$177 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$96 | Average$294 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$97 | Average$284 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$100 | Average$228 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$112 | Average$313 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$324 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$125 | Average$330 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$217 | Average$389 | FlexibilityNo cancel fee | On-time75% |