✈ FareTimingfares observed nightly · not booking advice

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ATL → ORD

Atlanta - Chicago O'Hare

$58
cheapest date in next 11 months · 2026-10-24
1
nights observed · since 2026-09-17
11
fare observations

When to fly: fares by month and weekday

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Mon
$157
$107
Tue
$82
Wed
$82
Thu
$156
$82
Fri
$153
$82
Sat
$155
$58
Sun
$155
cheapest $58most expensive $157· median of the cheapest fare per departure date in the latest sweep (round trip where offered, otherwise one way)

Fare calendar: cheapest fare per departure date

good (bottom quartile, ≤ $82)typicalexpensive (top quartile, ≥ $155)· observed 2026-09-17
Sep 2026
M
T
W
T
F
S
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24$156
25$153
26$155
27$155
28$157
29
30
Oct 2026
M
T
W
T
F
S
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19$107
20$82
21$82
22$82
23$82
24$58
25
26
27
28
29
30
31

When to buy: booking curve

Booking curve unlocks after 60 nights of observations - 1 so far.

Long-run seasonality: what people actually paid (DOT, by quarter)

$62$124$186$248Q1 2015 avg fare $170 · 9,101 sampled paxQ2 2015 avg fare $174 · 11,502 sampled paxQ3 2015 avg fare $153 · 12,485 sampled paxQ4 2015 avg fare $128 · 13,080 sampled paxQ1 2016 avg fare $128 · 10,844 sampled paxQ2 2016 avg fare $130 · 14,717 sampled paxQ3 2016 avg fare $121 · 14,527 sampled paxQ4 2016 avg fare $122 · 13,245 sampled paxQ1 2017 avg fare $138 · 10,567 sampled paxQ2 2017 avg fare $165 · 12,397 sampled paxQ3 2017 avg fare $143 · 13,789 sampled paxQ4 2017 avg fare $134 · 13,528 sampled paxQ1 2018 avg fare $133 · 12,318 sampled paxQ2 2018 avg fare $157 · 13,901 sampled paxQ3 2018 avg fare $171 · 13,081 sampled paxQ4 2018 avg fare $179 · 11,953 sampled paxQ1 2019 avg fare $184 · 9,755 sampled paxQ2 2019 avg fare $186 · 12,932 sampled paxQ3 2019 avg fare $172 · 13,503 sampled paxQ4 2019 avg fare $159 · 13,074 sampled paxQ1 2020 avg fare $144 · 9,276 sampled paxQ2 2020 avg fare $139 · 1,680 sampled paxQ3 2020 avg fare $103 · 5,041 sampled paxQ4 2020 avg fare $105 · 5,213 sampled paxQ1 2021 avg fare $110 · 4,662 sampled paxQ2 2021 avg fare $123 · 10,157 sampled paxQ3 2021 avg fare $128 · 11,776 sampled paxQ4 2021 avg fare $133 · 10,952 sampled paxQ1 2022 avg fare $144 · 8,259 sampled paxQ2 2022 avg fare $226 · 10,537 sampled paxQ3 2022 avg fare $212 · 10,293 sampled paxQ4 2022 avg fare $186 · 11,789 sampled paxQ1 2023 avg fare $154 · 10,914 sampled paxQ2 2023 avg fare $173 · 13,897 sampled paxQ3 2023 avg fare $170 · 12,454 sampled paxQ4 2023 avg fare $179 · 11,294 sampled paxQ1 2024 avg fare $190 · 9,348 sampled paxQ2 2024 avg fare $193 · 12,804 sampled paxQ3 2024 avg fare $184 · 13,007 sampled paxQ4 2024 avg fare $203 · 11,595 sampled paxQ1 2025 avg fare $213 · 9,137 sampled paxQ2 2025 avg fare $199 · 12,834 sampled pax20152016201720182019202020212022202320242025
Q1Q2 / Q4Q3· passenger-weighted average one-way market fare actually paid (this direction), US DOT DB1B 10% ticket sample
Method

Every night the collector pulls the cheapest fare per departure date for the next 11 months from Aviasales search data (Travelpayouts), and, on a rotating schedule, runs a Google Flights search for US routes that also returns Google's 60-day price history for that itinerary. The heatmap and calendar use the latest sweep; "good" and "expensive" are the bottom and top quartile of that sweep. The booking curve pools every observation ever made for this route by days between observation and departure. DOT DB1B is the US Department of Transportation's 10% sample of tickets sold, aggregated by quarter. Prices are indicative, not bookable.