Pricing

from $60.00 / 1,000 fare observation stored and scoreds

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Flight Fare History API: is today a good day to book this?

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Is today a good day to book? Scores today's cheapest fare against the price history it builds for your route and answers BOOK_NOW, GOOD_PRICE, TYPICAL or WAIT. It answers on the first run. $0.01 a run plus $0.06 a fare scored; the flight search itself is billed to you by the scraper.

Pricing

from $60.00 / 1,000 fare observation stored and scoreds

Rating

0.0

(0)

Developer

FrameProbe

Actor stats

Bookmarked

Total users

Monthly active users

3 days ago

Last modified

Categories

Travel

Developer tools

Row type

rowType

Optional

'observation' is a scored fare for a date you watch. 'routeSample' is another date on the same route, priced to build the cross-date baseline and never charged. 'reason' is a date that produced no price, with the reason. 'summary' is the one closing row of every run.

Type:string

Example:

observation

Options:

observationrouteSamplereasonsummary

Series key

seriesKey

Optional

The name of this itinerary's price history in your key-value store. Two rows with the same key are the same flight on different days.

Type:string

Example:

fare-LAXJFK-2026-12-08-38424f7f3046

Itinerary

itinerary

Optional

A readable label for the route, dates and cabin.

Type:string

Example:

LAX-JFK 2026-12-08, economy

Route

route

Optional

Origin and destination airport codes.

Type:string

Example:

LAX-JFK

Origin

origin

Optional

Departure airport, IATA code.

Type:string

Example:

LAX

Destination

destination

Optional

Arrival airport, IATA code.

Type:string

Example:

JFK

Departure date

departDate

Optional

The departure date watched, YYYY-MM-DD.

Type:string

Example:

2026-12-08

Return date

returnDate

Optional

The return date for a round trip. Null for one-way.

Type:string | null

Example:

null

Cabin class

cabinClass

Optional

The cabin class searched: economy, premium_economy, business or first.

Type:string

Example:

economy

Adults

adults

Optional

Number of adult passengers searched.

Type:integer

Example:

Max stops

maxStops

Optional

The stops limit applied. Null means any number of stops.

Type:integer | null

Example:

null

Airlines filter

airlines

Optional

Airline codes the search was limited to. Empty means all.

Type:array

Example:

[]

Observed at

observedAt

Optional

When the fare was read, in UTC.

Type:string

Example:

2026-09-29T16:19:23Z

Currency

currency

Optional

Currency of every price on the row.

Type:string | null

Example:

USD

Price today

price

Optional

The cheapest fare found for this itinerary on this run. Null when no price was found.

Type:number | null

Example:

209

Carrier

carrier

Optional

The airline or airlines of the cheapest itinerary.

Type:string | null

Example:

Delta

Stops

stops

Optional

Stops on the cheapest itinerary.

Type:integer | null

Example:

Verdict

verdict

Optional

BOOK_NOW, GOOD_PRICE, TYPICAL or WAIT when there is something to compare with. BASELINE on a first observation with no yardstick, INSUFFICIENT_HISTORY when the history is too short to say. Null on rows that are not scored.

Type:string | null

Example:

GOOD_PRICE

Options:

BOOK_NOWGOOD_PRICETYPICALWAITBASELINEINSUFFICIENT_HISTORYnull

Trend

trend

Optional

Direction of your recent observations for this itinerary.

Type:string | null

Example:

UNKNOWN

Options:

FALLINGRISINGFLATUNKNOWNnull

Confidence

confidence

Optional

How much evidence the verdict rests on, capped by what it was compared with.

Type:string | null

Example:

medium

Options:

highmediumlownonenull

Why

reason

Optional

One plain sentence explaining the verdict, or why there is no price.

Type:string | null

Example:

$209 is 18% below the $256 median of 6 other dates on this route.

Compared with

basis

Optional

What today's price was compared with: 'history' (your own stored prices for this itinerary), 'route' (other dates on the same route, priced this run), 'upstream_typical' (the flight scraper's own typical-price figure) or 'none'.

Type:string

Example:

route

Options:

historyrouteupstream_typicalnone

Compared with, in words

basisLabel

Optional

A readable name for the comparison used.

Type:string | null

Example:

6 other dates on this route

Points compared

basisCount

Optional

How many prices the comparison is built from.

Type:integer

Example:

Baseline price

basisReference

Optional

The median price the fare was compared with.

Type:number | null

Example:

256

Cheapest in baseline

basisCheapest

Optional

The lowest price in the comparison set.

Type:number | null

Example:

198

% vs baseline

pctVsBasis

Optional

Percent difference from the baseline price. Negative is cheaper.

Type:number | null

Example:

-18.4

Other dates priced

routeDatesPriced

Optional

Other departure dates priced this run for the same route.

Type:integer

Example:

Change vs last observation

deltaVsPrevious

Optional

Price change since your last stored observation of this itinerary.

Type:number | null

Example:

null

Change vs your median

deltaVsMedian

Optional

Price minus the median of your stored history.

Type:number | null

Example:

null

% vs your median

pctVsMedian

Optional

Percent difference from the median of your stored history.

Type:number | null

Example:

null

% vs cheapest seen

pctVsCheapestSeen

Optional

Percent above the cheapest price in your stored history.

Type:number | null

Example:

null

Observations used

observationsUsed

Optional

Stored observations the history verdict used.

Type:integer

Example:

Your observations

historyCount

Optional

Prices stored for this itinerary, including today's if it was added. A price read less than an hour after the last one is not added.

Type:integer

Example:

History starts

historyFirstSeenAt

Optional

When the first stored price was observed.

Type:string | null

Example:

2026-09-29T16:19:23Z

Cheapest you have seen

historyCheapest

Optional

The lowest price in your stored history.

Type:number | null

Example:

209

Your median

historyMedian

Optional

The median of your stored history.

Type:number | null

Example:

209

Itineraries considered

itinerariesConsidered

Optional

Itineraries the flight search returned for this date.

Type:integer

Example:

Itineraries rejected

itinerariesRejected

Optional

Itineraries dropped as unreadable or outside your filters.

Type:integer

Example:

Notes

notes

Optional

Anything worth knowing about this row that is not an error.

Type:array

Example:

[]

Itineraries watched

itinerariesWatched

Optional

Summary row only. Itineraries this run was asked to watch.

Type:integer

Example:

Observations stored

observationsStored

Optional

Summary row only. Itineraries that got a price and a verdict.

Type:integer

Example:

Itineraries failed

keysFailed

Optional

Summary row only. Itineraries this run tried to price that produced no price. Itineraries skipped because your spend limit was reached are not counted here.

Type:integer

Example:

Cheapest itinerary

cheapestItinerary

Optional

Summary row only. The cheapest itinerary this run found.

Type:string | null

Example:

LAX-JFK 2026-12-08, economy

Cheapest departure

cheapestDepartDate

Optional

Summary row only. Its departure date.

Type:string | null

Example:

2026-12-08

Cheapest price

cheapestPrice

Optional

Summary row only. Its price.

Type:number | null

Example:

209

Worth booking

actionable

Optional

Summary row only. Itineraries whose verdict is BOOK_NOW or GOOD_PRICE.

Type:array

Example:

[
  "LAX-JFK 2026-12-08, economy"
]

Verdicts by comparison

verdictBasis

Optional

Summary row only. How many verdicts used each comparison.

Type:object

Example:

{
  "route": 1
}

Baseline searches

routeBaselineSearches

Optional

Summary row only. Other dates searched to build the cross-date baseline.

Type:integer

Example:

Baseline dates priced

routeBaselinePriced

Optional

Summary row only. Of those, how many returned a price.

Type:integer

Example:

Baseline stopped early

routeBaselineStoppedEarly

Optional

Summary row only. True when the time budget ran out before every baseline date was searched.

Type:boolean

Example:

false

History store

historyStore

Optional

Summary row only. The named key-value store in your account that holds your fare history.

Type:string

Example:

fare-history

Charge failures

chargeFailures

Optional

Summary row only. Charge events the platform refused, by event name. Empty on a normal run.

Type:object

Example:

{}

Other properties may be included.

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