Get 40GB for $35 per month on Optus and a whole heap of Flybuys points

Optus has teamed up with Flybuys to offer an exclusive range of SIM-only plans that represent pretty good value. These plans are still delivered by Optus, you'll just need a Flybuys account to nab them. The full range is as follows: 

• $35 per month gets you 40GB and 10,000 bonus Flybuys points
• $45 per month gets you 60GB and 15,000 bonus Flybuys points
• $65 per month gets you 100GB and 30,000 bonus Flybuys points

The plans also include unlimited talk and text and Optus Sport, but no international inclusions. These plans are available until September 30. 

The $35 per month plan is the clear standout. For comparison, spending $39 per month on Optus only gets you a 10GB allowance. This plan doesn't include Optus Sport either. 

The comparison is a little trickier when it comes to the other two plans. Optus will charge you $49 per month for 60GB, so you'll save $4 per month by going with the Flybuys promo plan, but will miss out on international calls. And Optus normally charges $59 per 100GB on its standard plan, so the Flybuys option works out to be more expensive. We wouldn't recommend it unless you really want those 30,000 bonus points. 

There are a few other catches to be aware of. The Optus Flybuys plans require you to commit to a 12-month contract, whereas Optus' SIM-only plans are contract-free. Optus' SIM-only plans can also be paired with a new device, but the Flybuys plans can't be. You have to be a Flybuys member to get these plans, but registering for the program is free

You can check out Optus' Flybuys plans here.

For reference, here's a look at what other SIM-only plans between the $30 and $40 mark look like. 

Mobile Phone Plans

#1	Tangerine Telecom	Tangerine Telecom 15GB 5G Mobile SIM 15GB data at download speeds up to 150Mbps Uses parts of Telstra’s 5G and 4G mobile networks Deal: Bundle your mobile and nbn plans on the same account to get 10% off your mobile SIM-only plan fees. T&Cs apply. $30.00/mth Min. cost $30 Go to Site	$30.00/mth Min. cost $30	Go to Site
#2	Belong	Belong 25GB Mobile Plan 50GB data at download speeds up to 150Mbps Uses parts of Telstra’s 5G and 4G mobile networks Deal: Includes 25GB monthly bonus data for first 12 months when you activate your new service by 30.11.26. T&Cs apply. $34.00/mth Min. cost $34 Link not supplied	$34.00/mth Min. cost $34	Link not supplied
#3	SpinTel	SpinTel $35 Mobile Plan 100GB data at download speeds up to 150Mbps Optus 5G in selected areas with 5G devices ex. NT $35.00/mth Min. cost $35 Go to Site	$35.00/mth Min. cost $35	Go to Site
#4	Optus	Optus $60 Optus Choice Plus Plan 100GB data Optus 5G in selected areas (exc NT) with a 5G device Deal: $39/mth and 100GB/mth for first 12 months, then 60GB/mth and $60/mth or as notified. New services. Ends 12.11.26. Terms apply. $39.00/mth Min. cost $39 Go to Site	$39.00/mth Min. cost $39	Go to Site
#5	Moose Mobile	Moose Mobile Moose 250GB SIM Only 250GB data at download speeds up to 150Mbps Vodafone 5G Network in selected areas with 5G devices Deal: Get 250GB for $40– Includes $10 off for first 6 months, then reverts to $50. Offer ends 30.06.27 $40.00/mth Min. cost $40 Go to Site	$40.00/mth Min. cost $40	Go to Site
#6	Everyday Mobile	Everyday Mobile $40 SIM Only 70GB data at download speeds up to 150Mbps Uses parts of Telstra’s 5G and 4G mobile networks Deal: Get 10% off an eligible Woolworths shop in store every month when you link your Everyday Rewards card. T&Cs apply $40.00/mth Min. cost $40 Link not supplied	$40.00/mth Min. cost $40	Link not supplied
#7	Vodafone	Vodafone $58 Small SIM Only Plan 65GB data Vodafone 5G Network in selected areas with 5G devices Deal: Includes $13/mth off plan fees for first 12 months when you stay connected to this plan. Ends 16.11.26. T&Cs apply. $45.00/mth Min. cost $45 Link not supplied	$45.00/mth Min. cost $45	Link not supplied
#8	Telstra	Telstra $74 Basic Upfront SIM Plan 50GB data Telstra 5G Network in selected areas with 5G devices Deal: Get $37/mth off your first 4 months on a new Upfront Mobile Plan. New services only. Ends 30.11.26. T&Cs apply $74.00/mth Min. cost $24 Link not supplied	$74.00/mth Min. cost $24	Link not supplied

Sorted by price

See More Plans ~ Last Updated 6/11/2026

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Vodafone is a clear standout, offering 50GB per month for $35. This pricing only lasts for your first 12 months however, after which you'll pay $45 per month. 

Alex Choros

Managing Editor + Group Telco Editor | X | Instagram | Threads | LinkedIn

Alex Choros is the Managing Editor of WhistleOut Australia and an award-winning journalist. He's been writing about consumer technology for over a decade and is an expert on the Australian telco sector, to the point where he knows far too many phone and internet plans by heart. In addition to leading the WhistleOut editorial team, Alex is responsible for ruining the office Sonos with his troubled taste in music.

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