Find cheap flights from Illinois to Tonga

Find cheap flights from Illinois to Tonga

Round-trip
Economy
Zurich (ZRH)
Tonga
Fri 3/5
Fri 3/12
Any month
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Good to know

Low season

FebruaryBest time to beat the crowds with an average 5% drop in price.

High season

DecemberMost popular time to fly with an average 28% increase in price.

Average price round-trip

$1,657(avg. price over the last 2 weeks)

Good deal round-trip

$725or less

Good deal one-way

$603or less

FAQs for booking flights from Illinois to Tonga

How does KAYAK find such low prices on flights from Illinois to Tonga?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Tonga?

What is the Hacker Fare option on flights from Illinois to Tonga?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Tonga?

COVID-19 information

Safety measures for airlines flying from Illinois to Tonga

Airlines flying from Illinois to Tonga have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Illinois to Tonga

Mandatory masks

Masks required on board, masks provided on flights from Illinois to Tonga

Social distancing seating

Middle seats unavailable to book on flights from Illinois to Tonga

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Illinois to Tonga

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