✈ FareTimingfares observed nightly · not booking advice
ATL → DEN
Atlanta - Denver
$50
cheapest date in next 11 months · 2026-10-20
61
nights observed · since 2026-07-19
73
fare observations
When to fly: fares by month and weekday
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Mon
$301
Tue
$435
$50
Wed
$237
$435
Thu
$435
Fri
$435
Sat
$570
Sun
$435
cheapest $50most expensive $570· 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, ≤ $386)typicalexpensive (top quartile, ≥ $435)· 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$705
20$435
21$435
22$435
23$435
24$435
25$435
26$435
27$435
28$166
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
20$50
21
22
23
24
25
26
27
28
29
30
31
Nov 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
25
26
27
28
29
30
Dec 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
25
26
27
28
29
30
31
Jan 2027
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
25
26
27
28
29
30
31
Feb 2027
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
25
26
27
28
Mar 2027
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
25
26
27
28
29
30
31
Apr 2027
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
25
26
27
28
29
30
May 2027
M
T
W
T
F
S
S
1
2
3
4
5
6
7
8
9
10
11
12$237
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
When to buy: booking curve
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)
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.