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POST
/
v1
/
lowest_fare
Cheapest fares for a fixed route + date — up to ten itineraries, cheapest first
curl --request POST \
  --url https://api.example.com/v1/lowest_fare \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "origins": [
    "NYC"
  ],
  "destinations": [
    "PAR"
  ],
  "trip_type": "roundtrip",
  "departure_date_ranges": [
    {
      "start": "2026-09-01T00:00:00.000Z",
      "end": "2026-09-30T00:00:00.000Z"
    }
  ],
  "stay_days": 7,
  "cabin_class": "economy",
  "adults": 1,
  "currency": "USD"
}
'
{
  "itineraries": [
    {
      "id": "itin_9f3b2a17",
      "origin": {
        "code": "JFK",
        "name": "New York John F. Kennedy"
      },
      "destination": {
        "code": "CDG",
        "name": "Paris Charles de Gaulle"
      },
      "total": {
        "value": 412.5,
        "currency": "USD",
        "decimal_places": 2
      },
      "cabin_class": "economy"
    }
  ],
  "next_page_token": "eyJvZmZzZXQiOjIwfQ=="
}
The cheapest fares for a fixed route and date. Takes the same inputs as Flight Calendar but for one specific departure date (one-way, or with a return date for round-trip) returns up to ten itineraries sorted cheapest-first. The fixed-date counterpart of Flight Calendar — reach for it when the date is locked and you just want the cheapest options that day. Cache-backed; no live pricing. Each result includes an offer token you can pass into a live price check or directly into a trip.

Authorizations

​
X-API-Key
string
header
required

Body

application/json
​
origins
string[]
required
Minimum array length: 1
Example:
["NYC"]
​
trip_type
enum<string>
required
Available options:
oneway,
roundtrip
Example:

"roundtrip"

​
destinations
string[]
Example:
["PAR"]
​
origin_type
enum<string>
default:city
Available options:
city,
airport
​
destination_type
enum<string>
default:city
Available options:
city,
airport
​
departure_dates
string[]
Pattern: ^\d{4}-\d{2}-\d{2}$
Example:
["2026-07-15T00:00:00.000Z"]
​
departure_date_ranges
object[]
​
return_dates
string[]
Pattern: ^\d{4}-\d{2}-\d{2}$
Example:
["2026-07-22T00:00:00.000Z"]
​
return_date_ranges
object[]
​
stay_days
integer
Required range: x > 0
Example:

7

​
stay_days_range
object
​
cabin_class
enum<string>
Available options:
economy,
premium_economy,
business,
first
Example:

"economy"

​
direct_only
boolean
Example:

false

​
adults
integer
Required range: x >= 0
Example:

1

​
children
integer
Required range: x >= 0
​
infants_in_lap
integer
Required range: x >= 0
​
infants_in_seat
integer
Required range: x >= 0
​
youth
integer
Required range: x >= 0
​
student
integer
Required range: x >= 0
​
ages
integer[]
Required range: x >= 0
​
residency_country
string
Required string length: 2
​
max_total
number
Required range: x > 0
Example:

800

​
currency
string
Example:

"USD"

​
locale
string
Example:

"en-US"

​
limit
integer
default:20
Required range: 1 <= x <= 100
​
offset
integer
default:0
Required range: x >= 0
​
sort_by
enum<string>
default:lowest
Available options:
lowest,
recommendation

Response

Cheapest itineraries for the route + date, lowest-first

​
itineraries
object[]
required
​
next_page_token
string
Example:

"eyJvZmZzZXQiOjIwfQ=="