Life & fun · alternatives · 2026

24 alternatives to Book.green

Find the cheapest and most ecological flights

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Book.green launched in 2023; newer entries below may have overtaken it.

1
Travelgam▲178
Find the cheapest weekend flights in a single search ✈️
2019 · its alternatives →
2
Weekendflights▲302
Find the cheapest weekend flights with one click
2018 · its alternatives →
3
FlightList▲449
Find cheap, one-way flights within a departure date range ✈️
2018 · flightlist.io · its alternatives →
4
FlyGRN▲66
Flight search engine that offsets carbon emissions for free
2019 · flygrn.com · its alternatives →
5
I made a site that compares flights and offsets emissions automatically▲5
Find the best flights on the web. ✓ All airlines ✓ Destinations all over the world ✓ We offset your flight's CO2-emissions up to 100% for free. ✓ Fly Green
2019 · flygrn.com · its alternatives →
6
FareFirst▲95
Next-gen travel meta search engine to find best travel deals
2018 · farefirst.com · its alternatives →
7
Tripit Carbon Footprint▲75
Your carbon footprint at your fingertips
2020 · tripit.com · its alternatives →
8
FlyLine▲75
Spend less and travel more.
2019 · its alternatives →
9
Biliki AI▲180
Plan your sustainable trip in seconds
2024 · its alternatives →
10
MeetPoint▲121
Find the city where everyone's flights are cheapest
Jun 2026 · meetpoint.now · its alternatives →
11
Tripnary 2.0▲134
Find great places to fly on your budget
2016 · tripnary.com · its alternatives →
12
Cost-friendly flights▲73
Cheap, daily flights from pre-selected destinations.
2021 · its alternatives →
13
The Green Checklist▲79
Impactful sustainability tips in checklist form
2018 · its alternatives →
14
Momondo▲101
Find and compare cheap flights
2018 · momondo.com · its alternatives →
15
Finch▲96
Your shopping guide for more sustainable stuff
2023 · choosefinch.com · its alternatives →
16
Tripend▲66
Find the cheapest flight on weekends or day of your choice
2021 · apps.apple.com · its alternatives →
17
AwayTab▲123
Chrome extension that helps you find the cheapest flights
2018 · its alternatives →
18
Flightlist – Find the cheapest one-way flights in the world▲19
Search cheap flights across flexible date ranges instead of single dates. Find the cheapest routes and days to fly — book one-way or round-trip tickets.
2022 · flightlist.io · its alternatives →
19
JetRadar▲141
Compare flights from hundreds of airlines & travel agencies
2015 · aviasales.com · its alternatives →
20
offCents▲82
Travel with zero carbon emissions
2018 · its alternatives →
21
Become Nomad Podcast - The Best Tools and Methods for Finding Cheap Flights▲60
Hacks to find cheap flights. Save your money for traveling
2016 · becomenomad.com · its alternatives →
22
Flight Hacks▲103
Find cheap flights completely for free
2023 · goodflightdeals.com · its alternatives →
23
FlightList Android App▲82
Find cheap one-way flights within a departure date range
2023 · play.google.com · its alternatives →
24
OnlyFlights▲121
Flight tracking made easy
Nov 2025 · onlyflights.app · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →