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Airfare Search
Engines Compared
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Searches for flexible dates
(doesn't make you enter specific dates)
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Shows total travel time when there's a layover
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Finds cheap fares for one-way travel
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Handles multi-city trips
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Searches for nearby airports w/cheaper fares
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Live controls to filter results instantly
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Includes Southwest Airlines
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Kayak
aka SideStep
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limited*
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The best site for domestic (U.S.) flights. Searches
a ton of sites (including Orbitz & CheapTickets), and has more
features than anyone. Hands-down the best overall engine for U.S.
flights. The only downsides are: (1) Their Flexible Dates feature
requires registration, (2) Flexible Dates searches only +/- 3 days from
whatever date you enter, (3) It sometimes doesn't find the best price
for international fares (though often it does). Kayak is another flavor
of SideStep, which is basically the same thing.
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Momondo
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sort of
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usually
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Good site for international flights (starting or
ending outside the U.S.), as they search a number of tiny
international carriers that Kayak might miss, especially in Europe.
Their price calendar is neat when it works, but in our experience it
usually doesn't.
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Mobissimo
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Their hype says they always show the cheapest
international fares, but in our tests Momondo was often cheaper.
Hard to say which one usually gives the cheapest fare, so it's worth
checking both. Mobissimo is very lacking in features - its failure to
show total trip duration is a major shortcoming. It pretends to handle
multi-city trips, but if you choose that option then Mobissimo just
sends you to Orbitz, which does.
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Travelocity
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cumbersome
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Kayak is usually better. Travelocity
consistently returned worse prices than Kayak in our sample searches
(except on one fare from S.F. to Tokyo), and Travelocity's features are
lame compared to Kayak's anyway. Travelocity does one thing better: Its
Flexible Dates search is more powerful, and you don't have to register
to use it.
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Orbitz
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Kayak searches Orbitz automatically, so there's no
reason to search use Orbitz separately. Also, Orbitz charges a booking
fee of up to $12.
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Hotwire
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sort of
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Sometimes good for last-minute fares that the
other sites don't show, but doesn't offer one-way or multi-city fares.
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Southwest
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An individual airline, not a search engine, but we're
listing them separately because the search engines above don't include
their flights, and because their fares are often cheaper than what you
can find in those engines.
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The search engine offerings
change quickly. When
I first started this website, what are now the top three search engines
didn't even exist. And one of my early top picks, Qixo, has given up
and thrown in the towel. So here's the current rundown of the best
sites. If you don't see your favorite listed here, it's probably
because it's no better than the ones I do list. (But if you think yours
deserves to be listed, feel free to drop me a line to let me know.)
Kayak
(aka SideStep). Kayak is easily our favorite, because it
searches tons of sites to find the best
fares, and has lots of features that make it truly easy to use.
Really, they set the standard to which all other airfare engines should
aspire (and they can quote us on that). In fact I don't have space to
list everything that's brilliant about them, but here are the most
important:
- They search Orbitz, so there's no need to search Orbitz
separately.
- Live controls let you filter the results quickly (by price,
# of stops, departure/arrival time, trip duration, layover duration,
and more).
- You can also sort the results by price, airline,
departure or arrival time, or number of stops.
- Shows abbreviated listings by default so you can see more
results at once, but one click instantly expands any listing (without
having to reload the page).
- For each result an icon lets you easily print it, email it,
save it to Favorites, or even delete it if you've decided against it
and don't care to see it cluttering up your screen any more.
- One click on "Matrix View" displays a nice summary table,
showing fares by number of stops and which airline.
- One click on "See airline fees" gives a new window showing
baggage allowances and fees, as well as any charges for meals, pets,
and other special services.
- Clicks on any result goes to a new window, keeping your
search results intact.
- Icons for results show you when the connect time is less
than 45 mins, when a flight is nearly sold out, or when it's less than
75% on-time.
- Shows prices in any currency (requires free registration,
and they don't share your address).
Kayak's only downside is that it sometimes doesn't
show the best fares for international flights. For those you should
also try Momondo or Mobissimo, below. Also, remember that no engine
searches Southwest Airlines (because Southwest won't pay the referral
fee), so it always pays to check Southwest separately.
Momondo. Good
for international flights (starting or ending outside the U.S.),
as they search a ton of tiny carriers across the globe which Kayak
might miss, especially in Europe. Their price calendar is neat when
it works, but in our experience it usually doesn't.
Mobissimo. Their
hype says they always show the cheapest international fares, but in our
tests Momondo was often cheaper. Hard to say which one usually
gives the cheapest fare, so it's worth checking both. Mobissimo is very
lacking in features - its failure to show total trip duration is a
major shortcoming. It pretends to handle multi-city trips, but if you
choose that option then Mobissimo just sends you to Orbitz, which does.
Travelocity. Oh, how they've fallen.
Travelocity pioneered the important feature of Flexible Dates, but
after that they stood still and the other sites have outpaced them.
Today Travelocity rarely finds better fares and it's woefully lacking
in features, like live filtering. Kayak and Momondo/Mobissimo are
usually better, but Travelocity still scores on one feature: Its
Flexible Dates search is still the best around, since it's the most
open-ended. If your travel dates aren't set in stone then it could be
worth a try. Of course, since Kayak lets you launch a Travelocity
search in a new window, there's really no reason to ever go to
Travelocity first.
Orbitz. Orbitz has been eclipsed by
Kayak, since Kayak includes results from Orbitz. There's no reason I
can think of to search Orbitz separately.
Hotwire.
When there are unsold seats on a flight airlines will offer
them at a substantial discount at the last minute (a couple of days to
a week before the flight leaves). You have to be flexible with your
itinerary, but if that's you, you can score amazing cheap airfare this
way. Many search engines don't have access to these special,
suddenly-discounted flights, but Hotwire does, so Hotwire can often
find you a much better deal than the others. (We got Texas to
California RT airfare at the last minute for only $250 with only one
connection; this route was being sold for at least $600 everywhere
else, including Travelocity. We also got Baton Rouge to Miami one-way
for just $152 with only four days' advance purchase.)
There are lots of other websites, but we don't list them
all because we're focusing on quality, not quantity. If you know of
a really good site that's better than the ones listed above
(and can tell us why), feel free to let us know about it.
Regardless of which site you use, make sure you check out our Tips for getting cheapest airfares.
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Thanks
for visiting, and I hope you liked the site.
I'll leave you with a couple of hand-picked
ads.
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Find
which travel days are cheapest
If your travel dates are flexible, just enter
the cities you're flying between and let
Travelocity find which days are cheapest to fly.
Being flexible with your travel dates is our #1 tip
for getting the cheapest airfare.
Travelocity.com
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If you liked my guide to Cheap
Airfare, you might like some of my other sites:
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