What's the biggest pet peeve among air travellers?Uncomfortable seats and sky-high airline fees are among the top complaints among air travel passengers, according to the results of a consumer survey.

In TripAdvisor’s annual air travel poll, in addition to limited legroom and exorbitant ticket prices, 2,000 respondents in the US also named unpredictable flight delays, long security lines and “other passengers” -- notably loud, crying children -- the top five pet peeves about air travel.

The survey also found that more US passengers will be flying the global skies this year, with 67 percent of respondents indicating they plan to take an international flight this year, compared to 56 percent in 2012.

The same is true of domestic fights, with 91 percent of respondents saying they plan to board a flight within the US -- up from 86 percent last year.

Having to pay extra fees for checked baggage, carry-on bags, seat selection, printed boarding passes and in-flight amenities were also identified as among the top five most annoying airline fees.

And when it came down to choosing between airlines, a quarter of respondents said they would choose the one that offered Wi-Fi, while 37 percent said they consider their iPad or tablet a carry-on essential, up five percent from 2012.