Allegiant Flight Optimizer

Pick depart-from cities and destinations plus an approximate date window. The planner prices every outbound + return combination across every route, sums them, and ranks cheapest first. Add several depart-from cities to compare interchangeable airports (e.g. Rapid City vs. Sioux Falls).

Depart-from cities Destination cities Trip type

Earliest depart Latest return Min nights Max nights Round-trip deal ≤ $ One-way deal ≤ $

Depart days (leave empty for any) Return days (leave empty for any)

Flight times — off is much faster for long date ranges Show deals only

Depart-from cities Destination cities Trip type

From date To date

Find ways to chain Allegiant one-way flights from a start city to any destination — including cities with no direct route — built from Allegiant's live route map. Pick a routing, then check fares on each leg.

Start city Ultimate destination Earliest depart Latest arrive Min layover days Max layover days Max legs (flights)

Multi-stop trip optimizer. Set a home base and the cities you want to visit; it tries every visiting order, routes each hop (direct, or via home), and returns the cheapest complete tours with dates, fares and days at each stop.

Home base Cities to visit (up to 6)

Earliest depart Latest return Min days per stop Max days per stop

Trip name

Mixed-airport itinerary planner. Pulls every viable outbound + return leg, then scores every (outbound, return) pair - including different arrival/departure airports.

Home airport Direction Earliest depart Latest return Min trip days (optional) Max trip days (optional)

Away airports Outbound days Return days

Preferences (dollar-weighted decision adjustments)

Per-airport-pair lodging/car rules

Outbound legs

Return legs

Ranked itineraries

Create new watchlist

Name Depart-from cities Destination cities

Earliest depart Latest return Trip length min (days) Trip length max (days) Alert: round-trip ≤ $ Alert: one-way ≤ $

Outbound days Return days Fare types Notes

Chrome session & data

If scraping starts failing, reload Allegiant in the debugging Chrome to refresh the Cloudflare clearance.

Harvest GraphQL sniffs Allegiant's route map and full fare data into data/captures/ — run it once, then commit that folder.

Recent alerts

Saved trips persist in the local SQLite DB.

Browse Allegiant's entire route network (173 airports, 3,100+ routes). Pick an airport to see every city it flies to, and every city that flies here. This is route-map data — always available, no live lookup needed.

Airport

Cheapest current fares across the whole network, from the last sweep. Leave the box empty for all cities, or enter a departure airport to see the best deals out of it.

From (optional)