✈ FareTimingfares observed nightly · not booking advice

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ATL → SFO

Atlanta - San Francisco

$102
cheapest date in next 11 months · 2026-10-28
61
nights observed · since 2026-07-19
87
fare observations

When to fly: fares by month and weekday

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Mon
$165
$120
Tue
$182
$120
Wed
$198
$120
Thu
$213
$120
Fri
$336
$120
Sat
$322
$120
Sun
$228
$120
cheapest $120most expensive $336· 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, ≤ $120)typicalexpensive (top quartile, ≥ $182)· 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$491
19$439
20
21$165
22$182
23$198
24$213
25$180
26$204
27$228
28
29
30
Oct 2026
M
T
W
T
F
S
S
1
2
3
4
5
6
7
8
9
10
11
12$139
13$120
14$120
15$120
16$120
17$120
18$120
19$120
20$120
21$120
22$120
23$120
24$120
25$120
26$120
27$120
28$102
29
30
31

When to buy: booking curve

66768696106departure30d out60d out90d out120d out180d outlowest: 69 at 168–174 days out133–139 days out index 76 (IQR 73–76) · 4 obs140–146 days out index 100 (IQR 100–101) · 7 obs147–153 days out index 100 (IQR 100–101) · 7 obs154–160 days out index 100 (IQR 99–100) · 7 obs161–167 days out index 94 (IQR 94–94) · 7 obs168–174 days out index 69 (IQR 69–69) · 7 obs175–181 days out index 101 (IQR 101–101) · 7 obs182–188 days out index 101 (IQR 101–101) · 7 obs189–195 days out index 101 (IQR 98–101) · 7 obs
median25th–75th percentile· fare index: 100 = the typical price for that trip; each itinerary is indexed to its own median before pooling, so sources and seasons can be compared

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

$124$249$373$498Q1 2015 avg fare $342 · 5,968 sampled paxQ2 2015 avg fare $319 · 8,288 sampled paxQ3 2015 avg fare $311 · 8,103 sampled paxQ4 2015 avg fare $324 · 7,352 sampled paxQ1 2016 avg fare $379 · 5,208 sampled paxQ2 2016 avg fare $325 · 7,791 sampled paxQ3 2016 avg fare $300 · 7,236 sampled paxQ4 2016 avg fare $307 · 7,251 sampled paxQ1 2017 avg fare $325 · 5,878 sampled paxQ2 2017 avg fare $327 · 7,214 sampled paxQ3 2017 avg fare $320 · 6,651 sampled paxQ4 2017 avg fare $317 · 7,179 sampled paxQ1 2018 avg fare $313 · 5,779 sampled paxQ2 2018 avg fare $343 · 6,583 sampled paxQ3 2018 avg fare $354 · 5,769 sampled paxQ4 2018 avg fare $365 · 6,210 sampled paxQ1 2019 avg fare $354 · 5,965 sampled paxQ2 2019 avg fare $313 · 7,842 sampled paxQ3 2019 avg fare $310 · 7,518 sampled paxQ4 2019 avg fare $330 · 7,246 sampled paxQ1 2020 avg fare $284 · 4,933 sampled paxQ2 2020 avg fare $301 · 856 sampled paxQ3 2020 avg fare $266 · 1,923 sampled paxQ4 2020 avg fare $261 · 2,265 sampled paxQ1 2021 avg fare $277 · 1,713 sampled paxQ2 2021 avg fare $305 · 3,839 sampled paxQ3 2021 avg fare $306 · 5,171 sampled paxQ4 2021 avg fare $354 · 4,946 sampled paxQ1 2022 avg fare $379 · 3,317 sampled paxQ2 2022 avg fare $453 · 5,962 sampled paxQ3 2022 avg fare $420 · 5,889 sampled paxQ4 2022 avg fare $379 · 6,656 sampled paxQ1 2023 avg fare $366 · 5,094 sampled paxQ2 2023 avg fare $363 · 7,142 sampled paxQ3 2023 avg fare $316 · 7,387 sampled paxQ4 2023 avg fare $341 · 6,225 sampled paxQ1 2024 avg fare $368 · 5,159 sampled paxQ2 2024 avg fare $347 · 7,197 sampled paxQ3 2024 avg fare $327 · 6,703 sampled paxQ4 2024 avg fare $340 · 7,123 sampled paxQ1 2025 avg fare $351 · 5,565 sampled paxQ2 2025 avg fare $335 · 7,503 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.